When I was in high school, I lost a bet so I had to dye my hair blue and get dressed with only blue clothes for a week. Everything was doing fine on monday, the first class I had was with a teacher that was really nice with most of the students, he found it funny and even shared some jokes with me. Everything was doing great until I had History class, when my History teacher came into the classroom he told me to ge out of class immediately, and went into he principal's office with me. (I always had arguements with him, I tried to piss him off whenever I could, I hated and admired him at the same time for being so smart and at the same time really catholic. I had the best grades in that class so he couldn't complain about me) When we went into the principal's office I remember him saying that it was extremely unacceptable to come with my hair dyed this way, the principal then told me to get my hair "back to normal" or I'd get suspended. I told my dad and he told me to shave my head to tease my history teacher. Next day of school I went completely shaved and with a beanie, I saw my History teacher and went straight to him to say hello. My teacher, smiling, and with a mocking tone said: "That hat won't save you, you're not going to any class today". Right after he said that, I took the beanie off and saw a reaction I could't describe in a thousand words, it was epic. My friend who was next to me laughed his ass off. The teacher left without saying anything. After that me and my friend got called out of class and got suspended for 3 days for "not respecting the authorities" which was a huge punishment at our school. My dad talked with the principal and got our suspensions removed. He then told me that when he was young he had long hair and the school told him to cut it several times and he shaved his head just to make them stop complaining about it. He got suspended for it, too.

Tl;dr dyed my hair blue and got suspeded for shaving my head P.s. Sorry for the grammar mistakes, but I'm on my phone and in a hurry.