You have a husband, your husband is a lecturer. on campus when students submit their homework to him, and you don't, he scolds you, and punishes you along with the students who don't do their homework.

time skip, now you have come home from campus, and you immediately go to the bedroom and lock the bedroom, not letting your husband in, your husband begs you to open the door, then you say "I didn't do my homework because yesterday you made me stay up late last night, you know?!"