Parents ever walked in on u and ure boyfriend?

My bf's mum has walked in once on me and him in the act. Luckily we were on the mattress on the floor and she could only see the ends of my legs! He shouted 'its occupied!' In his language! Cringe! Was shocked for a minute but then we wanted to continue so quickly forgot!!! Any other stories like this? Or rather forget? Lol xx