Thanks to Planologer for the idea!

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A caption in the style of a public service announcement regarding drink spiking and womb tonic at bars or clubs. Basically, if you are already drunk and someone spikes your drink with womb tonic, your body will change but the amount of alcohol in your bloodstream does not. Which can mean that you can go from a little inebriated to blackout drunk all at once by the time that the transformation finishes as your alcohol tolerance changes, leaving you vulnerable to being taken advantage of by whoever spiked your drink.
A problem that gets worse because womb tonic triggers immediate ovulation and locks for 9 months if conception occurs, meaning that by the time that the victim wakes up in the morning they are likely already pregnant and stuck.