These days I'm a competant hacker and carefully under-hack items so that I can adjust them to the right length or visual effect. But that was NOT the case when I was a teen. I was an over zealous hacker, and a little too scissor-happy.
My Mum bought me a fab bathing costume at age 15 (hello 1985), but I didn't think the legs were sufficiently high-cut after perusing the latest fashions in a magazine. So off I hacked the leg openings - disaster - and had to wear my mistake with a sarong.
I was also into tops with low backs as a teen, so I cut the back scoop of some of my tees to showcase my back. Well. Those projects went south because the scoops were bigger than my back and the tees fell right off my body. Mum was not impressed.
Over to you.