Our nanny left our toddler alone in the

You already caught this, which is the part that matters most. A toddler alone in water for even a minute or two is a drowning risk, and "she thought he was smart enough" is a judgment call, not a safety margin — so the fix has to be a rule plus a replacement habit, not just a scolding.

Here's the practical version. (~25 min blocks, screenshot-friendly.)

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1) What you tried vs. what works better

Say it like this (in person, or send it if she's already gone):

> "I need to talk about the bath. Our rule now: an adult stays within arm's reach and eyes on him for the whole bath, every time — no exceptions, no 'he's fine, I'll be quick.' If you need to step away for a towel, a phone, the door — he comes with you, or you finish and call me first. I've written it on the fridge. If it happens again, I have to end the arrangement — I'll tell you the same day, and I'll help you send out a few leads, but I can't keep a job where this rule is optional."

Then stop talking. Firm = same sentence, no escalation, no new accusations. You don't need her to agree with you in the moment — you need her to know the rule and the consequence.

If she pushes back ("he's a good swimmer", "I've done this for years"): "I hear that. The rule is still no, and it's still the rule." Don't litigate the toddler's ability.

House rules for the fridge — 4 lines, your handwriting:

1. No child in water without an adult within arm's reach, every time.
2. Never leave a child alone in the bath, even "for a second."
3. If you need to step away: child comes with you, or the bath ends.
4. No phones in hand during the bath. Put it on the shelf within earshot if you need it.

Have her read it and say back in her own words what the rule is. If she can't, that's your answer about the job.

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2) What to avoid

• Don't fire her mid-bath or mid-shift without a handover. Your child's safety comes before the principle. Hand over first, then end it.
• Don't rely on a verbal promise alone. Written, dated, in the space she works in.
• Don't build the plan on punishment alone. She needs a *replacement behavior* (child comes with you / bath ends) — otherwise the rule has no path.
• Don't let this be a you-and-her issue. Every adult in the house — you, partner, grandparents, anyone on school-week mornings — follows the same rule or nobody does.
• Don't use backstops as the fix. Tub drain plugs, toilet-lid locks, a bath seat: fine as extras, never as the plan. Supervision is the plan.
• Don't make the toddler the messenger. Adults talk to adults about adult things.
• Don't "teach him to float" as the answer. Toddlers can drown in an inch of water.
• No dosing anyone, no meds, no online prescriptions — nothing here is a medical problem to solve chemically.

Tonight's kitchen/home jobs (~25 min total):

1. 5 min — Drain the tub now and keep it empty; put the bath stuff in one basket so setup is faster tomorrow (a fast bath is a safer bath).
2. 5 min — Write the 4 rules and date them; put them where she works.
3. 5 min — The conversation or the message. Then done.
4. 5 min — Charge your phone and put it where *you'll* hear it; decide right now who you'd call at 9pm if she can't be there.
5. 5 min — One line in your notes: date, what happened, what the rule is now. Factual, not a case file.

This week: one open check-in, not an interrogation. Ask "how's the bath routine going now?" — caregivers under scrutiny self-report differently than caregivers asked an open question. Spot-check twice: knock on the bathroom door during the bath. That's not distrust, it's supervision, and it's the cheapest safety system there is.

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3) Red flags — stop DIY, get real help

Go to emergency care now (call your local emergency number):

• Your child was under water long enough to cough, choke, vomit water, gasp, or needed to be pulled out — even if he's fine now. Breathing problems after a water incident can show up hours later. Don't wait until morning to see if he settles.
• Blue/grey lips or face, unusual sleepiness, confusion, vomiting after a water event, or a seizure. Don't put him to bed "and see."
• Anyone needed rescue breaths or chest compresses.

Same day, with a clinician:

• He's not behaving like himself over the next few hours — floppy, unusually quiet, or hard to wake.
• Any fall, bump, or other injury while she was watching him.

Stop and change the arrangement, not the rules:

• It happens a second time. There is no negotiation that preserves the job.
• She says she can't or won't follow the rule, or keeps deciding on her own when the rule doesn't apply. That is the finding — act on it, don't re-explain.
• Anyone else in the household is also leaving him alone in water or alone in the house. Then it's a household rule and a household fix, not a nanny issue.
• You are too tired to supervise tonight. Treat this as a safety condition, not a discipline problem: get another adult in the house or the child goes to someone safe. Fatigue is the most undercounted drowning risk in an exhausted household.

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What "success" looks like in 24 hours

Not a cure — just four things that are true tonight:

1. The four rules are written, dated, and visible where she works.
2. She can say, in her own words, that an adult stays within arm's reach for the whole bath.
3. The tub is empty, and you know who you'd call at 9pm if she's not there.
4. Your child checked out fine — breathing normally, acting normally.

You don't need her to admit she was wrong. You need a rule, a replacement habit, and a consequence you've actually said out loud.

My limits: I can't diagnose, can't tell you why he does what he does, and can't promise how she'll react. I don't tell you whether a specific water incident needs a doctor — that's a judgment for a clinician, and the bullets above are the point where you stop asking me and go get one.