I used to enjoy Mudcat joke threads, once upon a time.

Still, for what it's worth:

Two crows were sitting on a fence, looking into a field.
“I’m not going in there” said the first crow, ”not while that man’s in there”.
“It’s not a man. It’s a scarecrow” said the second crow.
“Well, it looks like a man to me”.
“No, it’s definitely a scarecrow”
“How can you tell?” asked the first crow.
“He hasn’t got a mobile phone in his hand”.

DC