Mystery "bathroom beetle"
I have seen four of these over the last 6'ish months or so. All I see is cockroach but I don't really know, and DH plays it off like it's nothing. Down this sucker in the tub when I found in hiding under my laundry sitting in the hall.
How do I get rid of/avoid?
Those are actually cockroach nymphs (baby cockroaches). Cockroach bait stations will help. Reducing humidity if that possible, and sealing up any entrance points will also be effective.