i like the idea of the shock method, but i was thinking more along the lines of disconecting the dryer outlet ever so carefully, and by all means DO NOT FORGET, what you did. watch the cat approach with a video camera. i think it will be simalar to what happened in the movie christmas vacation. send me a video as well, i will show it to the neighborhood cat owners so the next time one crawls on my car the will see what can happen.if you do decide to take ezmeraldalls idea please let me know so i do not bid on your speakers.