the context as blow:
Since my mom taught there, I would no longer have to ride the bus with a bunch of rowdy boys and worry about stuff like getting kicked in the head. No kidding ----they actually accidentally kicked m in the head on day!
if this phrase "getting kicked in the head" can understand by literally, I get it, I thought it as a idiom before. besides, this sentence, "they actually accidentally kicked m in the head on day"! I can't follow it. in my opinion,in a normally condition, how could other people kick the author's head?