That happened to me unintentionally over 100 times some people saw it at times when my buttcrack was showing unintentional. I’ll tell the most embarrassing one (also the #1 embarrassing moment that I had) which is the second time. When I had an event in middle school to make a paper turkey, I saw scraps on the floor. I decided to pick up the scraps to clean the classroom. I went down on one knee to pick up all of the scraps. When that happened, a female teacher and some students saw my buttcrack. The female teacher was RIGHT BEHIND ME when that happened. After seeing it, the female teacher said “Pull up your pants, your buttcrack is showing!”. I thought she said something else so I ignored her. When I picked up the scraps, I threw them in the trash and the female teacher said that again and I heard that easily the second time. So I checked and it was showing. So I pulled up my pants and pulled down my shirt so the female teacher and the students doesn’t see it again. One of my friends who has a crush on me knows this story.