It's my birthday. As usual, very little thought has gone into it so have spent the evening doing what DD wanted to do. One of DH's brothers is staying the night in a town about 20 miles away and has a spare bed in his hotel room. DH wants to go out drinking and stay out all night with his brother. I'd really rather he didn't, but he says this is the height of unreasonableness on my part. So, who is BU?