Do you remember 'arm farting' ?

Unfortunately, I do remember. The boys in cl did this in elementary school. It was so funny, the teacher would step out of the room and several of the boys would start in. One would be a look out. lol Every time! We had one boy that was really good at it though. His last name was Martin, gues what they called him? lol I forgot, when I was in school, it wasn't the ladylike thing to do, so none of the girls did it.