Too bad you don't live in Toronto, Richard. You could drop it off the observation deck of the CN Tower. I think that would probably do it.

When it landed, I mean...

Short of that...can you get hold of any plastic explosives? Ring up Winston Wellington-Jones. He knows people in the SAS, I think, and can probably find you a useful contact. But do be discreet.

My mother's (when she was a child) Hungarian housekeeper, Julie, once succeeded in exploding a pressure cooker that had some kind of soup in it at the time. The thing blew itself apart and made an unbelievable mess of the kitchen. Fortunately, no one was in there when it happened, but the detonation shocked the entire household. Soup went everywhere. Julie decided that the pressure cooker had probably become possessed by the Devil and she swore off using them from that point on.