DH wants an objective opinion.
"Do you think it's reasonable to tell a 4 year old to stay in her bedroom with the door closed until she apologises or a time limit is up as a punishment for seriously misbehaving. Bathroom breaks allowed and baby monitor on. The time DH has in mind is 2 hours."
PS Originally he said 3 hours and the misbehaviour was throwing a tantrum because she was upset about going to nursery.