I'd say to scrounge up a switch, 2 wires (with sheilding) and a 9-volt, as well as a little electrical tape, and wire it up to the doorknob (re: the switch is so that you can switch the ssytem off and not zap yourself when using the knob). They might think the first time is rug static, but maybe they'll figure it out after trying it a few times. >:) Include a hand-made warning sign and you can at least say that you warned them.
Comments 1
Reply
Leave a comment