She has a crate, but she would have to be able to catch him to put him in it (which means more biting). He used to stay in the crate while she was at work during the day, but now he holes up under the bed (any of the three beds) at night and in the morning when it would be time to put him up. She steam cleans monthly, but there's only so much that can do when he messes at least every few days.
My only disagreement with the insecurity possibility is how much this has escalated since she got him. She does not have mean kids that harass him, he gets along with the cat, and, if anything, she was too forgiving of his actions when he was younger out of concern for whatever he might have gone through in the past.
I'm not disregarding your advice, just frustrated for her.![]()