Who is BU here, me or DP? He has a habit of leaving things out. For example twice today he took things out from a box under our bed, but didn't put the box back. When he changes DD's nappy he sometimes leaves the cotton wool he's used to clean her on top of the nappy bin instead of putting it in, or leaves the lid off the nappy bin when he's put the nappy in there. This drives me crazy as it only takes a couple of seconds to put a box away or put the lid on the bin. He says he gets distracted and thinks I am being petty when I point out that he's done these things and get annoyed with him. AIBU?