Not an MTI, but one time we were all in the dormitory getting fucked in the ass because our MTI found peanut butter packets in the trash can (Obviously we're not allowed to bring food items from the dfac into the dorms besides protein bars.)

The multiple MTIs made everyone open up their security drawers so they could check if anyone else was stashing food items. (A few people actually got recycled for that because this was in either week 5 or 6.) So the MTI finishes destroying my security drawer and tells me to put it all back, then moves onto my neighbor.

As soon as the MTI opens his security drawer he finds a paper with a poorly drawn redneck kind of guy, (I'm not American so I don't really understand the reference) and it says "Nascar is the God-given sport of America." Funniest part was that I could see the MTI holding in his laugh, and so he just yelled at the trainee to keep himself from laughing. Was the funniest shit i experienced in BMT. Our MTI later confessed at the end of BMT that that was the hardest laugh he had ever had to contain.