What's the most stupid trend (or fad) you participated in yourself?

When I was younger I fell for two - baggy jeans and llamas.

I remember in 5th grade I tried to joke about llamas with one kid and show him the llama song (because he loved llamas) and he said I was just copying him. In hindsight fuck you Hans, you didn't invent llamas, you were just copying others too, you tool!

Baggy pants were regrettable too...