This joke never fails to acquire a laugh.
A man slow witted man walked into a pattent office. He walked around the patent officer and said, "Hey, I've got a brand new idea for a mouse trap." (Draw a box on the blackboard.)
"Here's the box." (Draw an opening in the box.) "Here's the hole." (Draw a circle in underneath of the hole) "Here's the cheese." (Draw a line across the hole in the box.) "Here's the blade. The mouse sticks his head in the holeto have the cheese, the blade drops on his neck and kills him."
The patent officer talks about the diagram. He understands that the person is just a little slow so he really wants to be kind. He explains to the person that he doesn't think the look is preparing to be patented yet. He tells the person, "Please, work on it some more. Perhaps I will have the ability to patent it another time." The slow witted man says many thanks and leaves the office.
One week later the slow witted man turns up again. (Draw the same example on the board in the same way.) The slow witted man says, "This is the box, here is the hole, here is the cheese and here is the wire. The mouse sticks his head in the hole to get the cheese, the wire wraps around his neck and kills him."
The patent officer, still attempting to be kind, makes the exact same excuse as before. The slow witted man leaves.
One week later the slow witted man returns. He approaches the exact same pattent officer and says, (The very same things)
"Here's the box. Here's the hole. (This time he draws a zig-zag line across the hole and he doesn't draw a circle for the cheese.) After completing the zig-zag line, the slow witted man proclaims, "and here's the saw blade."
The patent officer notices the look and the fact that that ther isn't any cheese. He asks the slow witted man, "Where's the cheese." "Ah-ha," says the slow witted man.
"This is the point. The mouse sticks his head in the hole
and says," "Where did you add the cheese."
(When the mouse speeks you have to become the mouse. Stick your face out like looking to the trap and swing it back and forth like looking for the cheese.)
The implication is that the mouse will saw off his own head while looking for the cheese. Remember the saw blade?