5 kids. I have an inexpensive Korg digital piano. Last time it stopped working, I had the keyboard circuitry changed--the old one had dried coke coating the conductors. I have also found a sandwich inserted into a VCR and yogurt rubbed into a camcorder. The 5 kids have 5 bunnies that chew through power and audio cables when they are let loose in the house. Kid and bunny resistance are important factors in my purchasing decisions.