(☎️) You get news that there is a sudden bag check at school, you automatically hide items in your underwear. teachers usually check your bag and uniform pocket to make sure you are not carrying something that is prohibited by the school so you think it's safe cause you put it on your underwear

He feel strange because he didn't find anything in your bag or pocket, maybe because he know you as a troublemaker

"You sure don't bring anything?" He asked. While check your pocket