I’ll go first. Mine is the instant knockout drug. Like Dexter’s intramuscular injection that causes someone to immediately lose consciousness. Or in the movie Split where there’s the aerosol spray in your face that makes you instantly unconscious. Or pretty much any time someone uses chloroform.
But also if you know anything about engineering, it’s double your expected timeline just in case Shit Happens™️. I can fairly safely predict delivery in two hours. I might be able to deliver in one. Under-promise and over-deliver, or risk vice versa.
I always 7x. Especially if I’m dependent on others