This reminded me of that joke about two guys who meet in the middle of the Savanna. One is carrying a phone booth and the other one an anvil. So, the one with the anvil asks:

- Why do you carry a phone booth around? - Oh, you see, it's for the lions. If I see a lion, I drop the booth, step inside and I'm safe. What's with the anvil? - It's for the lions too. If I see a lion, I drop the anvil and I can run way faster!

Good trick anyway!