The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage.
Humor is very very risky, particularly for a candidate, unless he's been in so long that it just doesn't matter, and he's not running for president. But it's just that people are so sensitive and so touchy, and you're just going to upset somebody without ever realizing it.
The scientific theory I like best is that the rings of Saturn are composed entirely of lost airline luggage.