1) They only have one conversational tone: shouting.
2) They call each other horrible, horrible names.
3) He has bratty kids who vandalise the loo.
4) In some deranged ploy to gain who knows what, they've removed all the big plates from the kitchen.
5) They keep setting the fire alarm off.
6) They stomp up and down the stairs.
7) They never stop shouting at each other.
8) They live here.