It can happen to anyone!

 From the Seinfeld episode, The Non-Fat Yogurt

Elaine: Hey!

Kramer: Hey!

Jerry: What's the matter?

Elaine: Oh, I was having lunch, and I bit down on the fork.

Jerry: Boy, it's hard to believe -- with all that biting experience -- a person could still make a mistake like that.

Kramer: Yow!
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Judge: Hey!

Freedman: Hey! What's the matter?

Judge: Oh, I was writing an opinion, and I cited an inapposite case.

Freedman: Boy, it's hard to believe -- with all that judicial experience -- a person could still make a mistake like that.