I was a rebel at school: Cara Delevingne

London: Supermodel Cara Delevingne has revealed that she was a rebel at school and loved playing pranks on her sister and classmates.

The 22-year-old model-and-actress said she has never liked following rules and always "rebels" against things she does not like, reported Contactmusic. "I don't like boundaries. If someone makes a boundary I don't like I'm a rebel ... I loved setting off fire alarms a lot at school. Just leaving horrible things in people's shoes, such as eggs.

"Once I left a scorpion in my sister Poppy's shoe. She didn't get stung, she saw it first. We had a horrible fight after though. I wasn't someone who got caught at school, ever. I was very much a ninja. Someone else would always get caught," she said.

Delevingne can next be seen in movie "Paper Towns" as troubled teenager Margo Roth Spiegelman.