Hahaha, love the "Intel Inside, Idiot Outside" sticker!
My son bought a book of funny stickers, and put some on his door, like "rebel base", "my cult is recruiting", "silence, while I decide your fate", etc. He gave some to his dad to put on his desk - the one I like most is "A clean desk implies a cluttered drawer":).
I've never encountered a trans-gender in my classes - yet.