What moments have you seen when you are showing off in an ostentatious manner one second and getting what you deserve the next?

When I was in high school, I took socks from the balcony and put them in my pocket in the morning. I went to brush my teeth and wash my face. Then in the morning exam, I usually take out my pen and eraser separately and enter the examination room without a pencil case. Before the exam, my classmates came to my examination room to borrow erasers. "Do you still have an eraser?" "Yes, wait." Then I reached for my pocket and felt something was wrong. Why are there fluffy things to look at? I took out a pile of sleepy socks ... well, the invigilator was already sitting, and the students in the whole examination room were sitting quietly. 40 people watched me take out my socks for my classmates.