Waiting to do something that you know you shouldn't do until you can come up with a reson, regardless of whether or not you base said reason on false facts and illogical reasoning.
A: "Dude, that kid just threw a brick at that guys head!"
B: "George W. Bush sucks."
B: "I said, why did he throw the brick?"
A: "The kid said it was because the guy's car was green, and therefore he was trying to commit insurance fraud because people would hit him because he blended in with the grass."
B: "But...the guy's car was silver...and we're downtown...where there is little to no grass..."
A: "I know, it's like invading Iraq."