She learned her lesson about abusive and obnoxious teachers. (Thinkstock)

Just in case you were feeling nostalgic for your days of carefree teenagerdom, here's a reminder that high school sucked. 

A 15-year-old student (not pictured above) was humiliated when a teacher decided to show an assembly of 100 of her classmates a photo of the girl in a bikini. The photo, which the seriously misguided teacher pulled from Facebook, was blown up and included in a slideshow and was meant to illustrate the dangers of putting private information online.

Sources: Daily Mail | h/t Gawker