60 second rule

The amount of time before which certain individuals who have asked a dumb or inconsequential question will have either found the answer on his own, or have realized it wasn't worth asking.

Certain people are more susceptible to this rule than others. It's rare that they'll still be curious after 60 seconds have passed. Most of the time, ignoring their question does the trick.

P: If Batman's parents died, then how was he born?
K: ...
(60 seconds pass)
P: Ohhhhhh. Just Googled it.
K: 60 second rule. Works every time.
P: You're a dick.

3 second rule

Originally used in basketball, often termed as lane violation.

For modern day use, it's for when you drop your food on the ground, but you say " 3 second rule!" as an excuse to say that your food remained clean.

"Yo hand me that juicy barbeque bacon burger"
"There you go bro.. *OH SHIT I DROPPED IT*"
"Pick that shit up, 3 second rule you remember?"