A circus owner walked into a bar to see everyone crowded about a table watching a little show.

On the table was an upside down pot and a duck tap dancing on it.

The circus owner was so impressed
that he offered to buy the duck from its owner.

After some wheelin and dealin they settled for $10000 for the duck and the pot.

Three days later the circus owner runs back to the bar in anger, Your duck is a ripoff! I put him on
the pot before a whole audience and he didnt dance a single step!

So? asked the ducks former owner, did you remember to light the candle under the pot