This one hits close to home.
I have my own experiences with backyard artillery, though MY cannon is designed to shoot pecans. I've launced the suckers over the horizon. It also works well loaded up with dog food and fired at squirells to keep the little bastards out of the pecan tree.
No song till tommorow, I don't trust this piece of crap comp I'm on to be able to last while I type the lyrics in.