If all those psychics know the winning lottery numbers, why are they all still working?
Everyone has a photographic Memory, some just don't have film.
If at first you don't succeed, then skydiving definitely isn't for you.
Why is it, when a door is open it's ajar, but when a jar is open, it's not a door?
You never really learn to swear until you learn to drive.
The speed of time is one second per second.