This guy on YouTube decided to answer the question that no one asked: can you carve a jack-o-lantern with a power washer? Turns out you can, and you get some pretty clean lines.
It's not too often that a squirt gun beats a real gun. This man was simply washing his car when two men tried to rob and carjack him. Instead of handing over the keys he turned the power washer on the robbers. After the first guy took off, his buddy tried to finish the robbery and ended up getting the same thing.