Renton looks at her and sees her pain and anger. It cuts him up. It confuses him. Kelly has a great sense of humour. What's wrong with her? The knee–jerk thought: Wrong time of the' month is forming in his head when he looks about and picks up the intonations of the laughter around the bar. It's not funny laughter. This is lynch mob laughter. How was ah tae know, he thinks. How the fuck was ah tae know?