I was a bedwetter and wore pull-ups to bed. Once when I was 6 or 7 my sister (then around 12) had some girlfriends over while babysitting me. We got into an argument and she pulled down my pj's. The other girls laughed at me wearing pull-ups and called me diaperboy. I got mad and embarrassed. I told mom what happened later but she said if your sister was in charge she could do what she wanted. Soon I stopped wetting the bed but was still mad at my sister and her friends for making fun of me.