well , apparently his boss came up with the clown in the cannon trick. Instead of loading the cannon up with compressed air and coloured paper/feathers , boog had pissed him off so much that the boss decided that gunpowder and and marbles would be a better accelerant. So come the magic moment, his boss lit the fuse and a second later clown puree spewed forth from the cannon. The kids loved it and laughed there heads off.
The boss went and found boogs head and told him that since he was obviously unfit for work , he'd have to lay him off.