Because they are always Stalin!
You: You can tuna piano but you can't piano a tuna! Person getting told joke: What about the jar of glue? You: I knew you'd get stuck there
I don't know, check the post above me.
Both are yellow and can't drive.
So they can drive with the handcuffs on.
Too much Stalin'. Yeah it's bad but it made me giggle when I thought of it... :P
A communist party
To break the rush-A stereotypes