Fool Me Once, Shoes On Me; Fool Me Twice, Shoes On You

The Shoeing Incident

George Bush is unbelievably athletic. He's gonna duck it with ease if you throw a shoe at him.

Here's a journalist that forces Bush to reveal an obscured athletic talent, on camera, on December 14, 2008:

"I don't know what the guy's cause was," Bush said, speaking about the shoeing incident, "I didn't feel the least bit threatened by it."

Other leaders may go straight to the hospital if you throw a paper shoe at them. But not Bush.

Locked-Door Incident

The American president is also known for handling unexpected situations rather effortlessly. Once he couldn't open a locked door: in his bid to avoid hostile questions from the press, Bush tried to walk out of a door that was apparently locked.

Unable to open the locked door, Bush turned around to face the reporters he initially walked away from. "I was trying to escape," he said, "Obviously, it didn't work".

The locked door incident, which occurred in China, would be replayed in various American comedy shows.

"Fool me once, shame on — shame on you"

During one press conference, he couldn't complete a famous sentence. He couldn't complete a sentence he started. He's supposed to say, fool me once, shame on you; fool me twice, shame on me. But he ended up saying, "Fool me once, shame on — shame on you," and then in midsentence he realized he forgot the next part; so this was what he said to make up for the forgotten part, "Fool me — you can’t get fooled again."

This is Bushism (the term for linguistic error of Bush; usages seen in websites and books).

Weapon of Mass Destruction

Bush conducted a war first and then looked for evidence that justifies the war later.

TLDR: Fool me once, shoes on me; fool me twice, shoes on you. :)