This Joke is meant for Boy Scouts.

An art thief once stole some very expensive paintings from the Louvre in Paris. He took two Van Goghs, a couple Monets, a DeGasse, and some other paintings. 
Everything went perfectly, except he was captured sitting in his van with the paintings only 2 blocks from the museum. His van had run out of fuel! 
When asked by the police how he could plan such a successful robbery and then be foiled by such a simple error, he replied... 
'I had no MONET to buy DEGASSE to make the VAN GOGH!'