I think that ovens should be ferretproofed if a ferret ever has free run by the oven. I don't think it is sufficient to lock them up only when one is using the appliance. We have a gas oven/stove. Before we had completely ferret proofed the appliance (we had blocked in the bottom - but not the sides or top - which we thought was sufficient) we found Nina once curled up underneath the top of the stove (in between all of the burners) curled up next to where the pilot light is (which she must have blown out). She was sleeping there just breathing fumes. The hair on her ears was singed - but she didn't care. We came home, smelled gas and began to investigate the oven pilot light - it was on. Then we lifted up the big metal top - and there was Nina sleeping peacefully (or maybe the gas fumes knocked her out)... I say - ferret proof the stove completely if the ferret is ever near it. My opinion. CL [Posted in FML issue 1238]