A famous mathmetician tells his wife: "I, a mathmetician of 50 years, am spending the night with my 18yo assistant." The wife says: "I'm seeing our 18yo poolboy. As a mathmetician you can appriciate that 18 goes into 50 more than 50 goes in 18."

Rules to live by:

1) don't fart in a space suit....
2) if you absolutly must to throw sh*t in a blender....put the lid on!
3) don't moon a werewolf!
4) theres no kill like overkill :)