I tried to make a joke today...

My ASL class is chaotic, in a good way. We all have inside jokes, and you learn something new every day, even if it has nothing to do with ASL. At the front of the class is a big whiteboard and I draw on it a lot. Other classes do too, but I draw about 90% of it. Anyway, the board was blank again today, so I made some drawings. Specifically, a witch trial because I wanted to be funny. They were stick figures with hats and stuff. I also drew a monster, and a van and children and a bottomless pit and stuff, all kinda violent but like not where people would take it personally, i hope. Anyway some kid in the class asked why i always drew violent things and I said I dont know. Then another kid told me I needed to go to guidance, and I said I had already been there this week (Today was monday) and they didn't want me visiting anymore. I thought it was funny, since I assumed they knew thats why I wasn't in class half the time. (We have a sort of therapist at our school, who if you go to guidance enough they tell you to visit and you have to take classes. Its like a actually class period) Anyway, I was kinda laughing at my joke but everyone kinda went quiet and looked at me. Did I do something? They make jokes like that (even worse) all the time. They ignored my drawings the rest of class and pretended like nothing happened, I didn't think it was that bad, was it?