Cold joke, mental illness type, urgent need

The teacher asked Xiao Ming, "1+ 1=?" Xiao Ming said, "I don't know." The teacher told him to go home and ask his parents. Xiaoming goes to ask his mother first. Her mother is very sad. She called him "mental derangement" and Xiao Ming asked his brother who was watching TV, "Black cat boss." Xiaoming went to ask his father again. Dad was eating a popsicle and said, "Great." Xiao Ming went to ask his sister in love again, "Dear, I will wait for you outside." Xiao Ming went to ask his sister again, and her sister kept saying, "Good rabbit, open the door."

The next day, the teacher asked Xiao Ming 1+ 1=? Xiao Ming replied first: "mental derangement!" " The teacher asked, "Who told you that?" "Black cat boss." The teacher gave him a slap without saying anything. Xiao Ming replied, "Great." "Xiao Ming, come to my office after class!" "Honey, I'll wait for you outside." The teacher locked him in the office, and he replied, "bunny, please open the door." ......