hmm... I would probably look into some sort of anti climb fencing or something (does it exist? LOL) and agree with a PP about fixing locks etc out of reach. I wouldn't say an electric fence would be child abuse. I mean I'm sure kids growing up on farms soon learn which fences are electric It does sound a little off to get it just for a child tho. I don't really know tbh. Only you can know what's going to keep him safe.. but I think ask around some professionals re locks and fencing first