We are abroad on hol atm, 6th floor room.
DH took DD,4, back for a snack and play in our room at hottest part of day.
Over dinner tonight he told me he left DD playing on the balcony while he had a shower. It's a glass wall shorter than she is with a little wall she could also climb up.
He says she is very sensible, sees no issue at all, I am fucking livid he did this. AIBU?