The worst thing a woman ever did to me

So when I was about 10 or 11, I was in my friend's house playing games. His sister was about 5 years older and we weren't allowed in their house unless my friend was with us.<br><br>Well I needed to use the restroom, so my friend took me to the bathroom. I was waiting and the door opened and I saw a girl's legs, I was like what is going on and she was like "I'm gonna pee, hold on" and I was like "No, wait! I'm in here!" I jumped aside just in time for her to pee but she had a huge smirk on her face. She was my friend's sister. She then turned to me and asked "You're not going to pee?" and I was like "No, I'm not going to pee, you're in here!" Then I told my friend what happened, and he was laughing, but I wasn't happy.<br><br>When we got out of the bathroom, she was like "Well, I guess you're just gonna have to wait until he gets back" and she walked out of the bathroom and my friend said "Don't worry, I'm gonna go find the teacher" and he did and he said it to the teacher and the teacher went in and asked her if she was okay and she was like "Yes, I'm fine!" And then the teacher came out and told my friend "I'm sorry, you have to leave now" and he said no and then he had to leave and I was left alone. It was really scary because I didn't know what to do. So I just sat in the bathroom until I heard a noise and I knew the teacher was coming to see if I was okay and I was like "Yes, I'm okay!" and then the teacher came in and told me "It's okay, you're safe" and I said "Thank you!" and then I went back to my house.