So close - there were four boys in the house! Hulverstone and his sons.
[url=https://flic.kr/p/K9TXXB]
I know I'm breaking my own rule with that house, but it's a calculated risk with these lazy lads. Usually I have houses with more than one entrance for pairs. I do like the Poundland tealight holders as hamster houses as they're well ventilated as well as able to be cleaned in the dishwasher!