Yesterday I was leaving a building through a large revolving door. I had a handbag over my shoulder and was carrying a takeaway hot chocolate. Just behind me, a woman, man and child (about elbow height) entered and the woman got really close behind me, to the point where I had to step forward. I got too close to the centre of the door so it paused. The woman is creeping closer and closer behind me, muttering that 'you have to walk too you know'. As I started saying, "I know but it stops if you get too close...", she got closer again and knocked my bag off my shoulder. This then jolted my arm and a shot of hot chocolate pretty much erupted out of the tiny hole in the lid of the cup. It went on my glasses, my face and arm. It also went on the lady's arm, and at this point she lost it. She actually screamed at me that I almost blinded her child and had scalded her arm. All this while we're kind of trapped in the revolving door. I was so shocked I just kind of stood there, so the family couldn't go any further forward, making the door pause again, etc, you get the picture.
I didn't know what to say because I felt like it wasn't all my fault. I am of course sorry that she got some hot chocolate on her arm, so close to her child's face, but she was the one who knocked my bag off my shoulder by basically pushing me forwards in the revolving door. I mumbled an, 'are you ok?' and thankfully got out of there quite soon after. Was IBU, was this my fault and I'm just not taking responsibility?