My suggestion may or may not be legal, and it's most certainly unethical, but also undeniably effective.
1. Carry with you at all times a small bottle Thiopental and a syringe. Thiopental is a colorless liquid that will be used to render the crying child unconscious.
2. Fill the syringe with one milligram of Thiopental for every 20lbs of child. This is where the ability to guess a child's weight comes in handy, as too much of the drug can be lethal. Best to err on the lowside.
3. Misdirection. If your plan is to be foiled, it will be at this stage. The parents of the crying baby certainly aren't going to consent to your idea of drugging their small child, so you'll need to distract them for a couple seconds while you inject the baby with drug (the jugular is the best point of entry). I like to use a flirtatious female as my main source of distraction, though your mileage may vary depending on what you have at your disposal.
"mattresell" wrote: