confusing people is great

pfft- when i walked into class earlier, i held the door open and then one of the teachers took it when i walked in. she asked the dude who was waiting to leave the class if he was going to leave. he said "ladies first." i looked at him and said "i'm not even a girl" he shrieked and jumped back. i think he left after that but idk i was going to my seat and was no longer looking at him; i wonder if he thinks i'm a dude now