I can’t decide who was BU in this case. I was changing in a cubicle and had all of my belingings in there - as most do at my gym. I went off to the shower (quick shower!) and when I went back I found the door locked! I knocked on the door and a quite stroppy woman opened it reluctantly and said ‘let me get my trousers on.’ All she said to me was ‘I have a baby here.’ When she eventually came out fully dressed she went over to a bench where she had all of her belongings spread out and gave me daggers looks when I went in to change.
Who was BU?