There's a whiteboard at my daughter's elementary school that principal uses to 
write a daily note to the students.  Today the note said something like this, 
"We have an assembly at 2pm.  Guess what it is about."   And he left space of the 
whiteboard for students to write their guesses.

Some examples of what the kids wrote:

Sports
Football
Rules and stuff
Something
Nothing

I thought "nothing" was a funny answer until I spotted something in the bottom left 
corner.  Someone had written "sad clowns."

HA!

Tim