Boobie-trapped how? (let me guess: this somehow involves a zombie)

No no... no zombies. (but that is a good idea) What I was think was:
- if someone kicked someone's tombstone, they get electracuted!
- or it could be a number of random occurances such as getting sick (flu, cold, poisoning, etc.) or they wet themselves.
Carrigon has something similar: a lawn Gnome. But I was going to shoot for something along the lines of a general tombstone;
and have the option to set the boobie trap on/off.
And... if that one individual desicrates the tombstone too many times, he/she turns into a zombie! (*Insert Manical Laughter*)