They already know everything.
If you don't know candy is bad for you, what are the chances you can read
I don't know I just fly the drone"
There used to be exactly two, and now it's too offensive to talk about.
A talking frog! Stolen from "Friends" still hilarious.
A taxi
I don't think they feel very safe in my taxi.
A taxi driver
They both need a *break* every once in a *while*. edit: this is a three-way pun btw - it works better out loud