Cats!

What a great response for electrocuting, frying and even barbecueing cats!

Just wanted to scare them off with ultrasonic frequencies! hurt their ears!!!!

Someone asked about keeping mice at bay, how about pulsing an old TV line
output transformer (LOPT) to a WELL insulated bare wire?, using a PIC of
course!
Try using a darlington or VMOS from the PIC output into one of the BU508 etc.
High voltage transistors.Dont forget the diode for back emf!  NOT RECOMMENDED
IF THE WIRE CAN BE TOUCHED BY HUMANS!
See, a disclaimer !
Kev H