I can think of at least 10 other things to place on your seat..
Wow, this sounds like so many boys I met growing up. I was pretty shy and quiet most of the time at school, because I was an immigrant and I had a hard time making friends most of my school experience. So I would spend most of my freetime, such as Lunch time or in Gym class, by myself. I didn't feel just right bullying boys because although I spoke English, I had a very rough accent and I was shy to speak or people in general. I remember, boys would try to pull at my hair or tap my shoulder. Boys would even call me names like "Giant" Or "Zena warrior Princess." I would end up pushing them or wrestling... now that I think about it, they secretly wanted it.