<slightly off topic>
Last time JW's came to my parents house, they chose Haloween (sp?) of all evenings to do it.
I was about 13-14 at the time, and had been waiting all evening for trick-or-treaters to turn up because I had prepared a nice bucket of ice-cold water ready to throw over them from the bathroom window which overlooked the front door. (yes, I know thats a bit harsh/irresponsible.. but I've grown up
a little bit since then)
Needless to say, the obvious happened.. and the JW's didn't end up having their usual long debate with my Dad