I'm sorry, Mike.
That was a reference to Occam's Razor.
Zebras are usually used as the example, as in, when you hear a thundering herd of hooved beasts with manes, it's best to assume horses, not zebras. The Computer dictionary available through Pip's Dictionary Application goes a bit further, and applies the sort of example that the scholastic monk, William of Ockham, probably was more concerned with when he devised the principle in the first place:
Occam's Razor definition
The English philosopher, William of Occam (1300-1349) propounded Occam's Razor:
Entia non sunt multiplicanda praeter necessitatem.
(Latin for "Entities should not be multiplied more than necessary"). That is, the fewer assumptions an explanation of a phenomenon depends on, the better it is.
For example, some claim that God caused himself to exist and also caused the universe to exist - he was the "first cause" - whereas Occam's Razor suggests that if one accepts the possibility of something causing itself then it is better to assume that it was the universe that caused itself rather than God because this explanation involves fewer entities.
The negation of Occam's Razor would suggest that an arbitrarily complex explanation is just as good as the simplest one. (E.g. God and his cat created a robot called Sparky who built the universe from parts bought from a shop in another dimension).
See also KISS Principle.
I don't think William of Ockham was thinking specifically of Sparky, mind you.
Onb the other hand, there are simpler explanation for the idiocy and occasional acts of violence that tend to happen from time to time around the TEA Party Meetings than the more or less ubiquitous "Infiltrators and Leftists did it."
It not impossible that there are infiltrators and Leftists doing stupid stuff. There must be at least some of them. It's simply not the most likely explanation.