Went for a coffee this morning. A “mature” lady was sitting with male friend at opposite table. I didn’t take much notice, but, suddenly, looking up across the cafe I couldn’t help seeing that her very short shorts had ridden up, she evidently wasn’t wearing isn’t pants underneath and all or almost all was revealed. I immediately looked away but she stayed put for the duration of my visit. Should I have warned her? I was too embarrassed to say anything. WWYHD?