A blind man accidentally bumps against a fat lady.

Fat lady: Watch out, you filthy old man!

Blind man: I’m sorry. Even Homer sometimes nods.

Fat lady: What are you saying?

Blind man: I mean…Aw…I give up. I’m blind. I can’t see.

Fat lady: Oh, I’m sorry, sir. I’m terribly sorry about that.

Blind man: It’s all right. Cool. It’s just that…

Fat lady: Even a fat lady sometimes nods too.

Blind man: Oh, you got it, lady.   

Homer, 荷马，西方世上有名的智慧男，有时他老哥也会打瞌睡，犯错啊。所以，‘Even Homer sometimes nods’被解释成‘智者千慮必有一失’也。