We all know you're not supposed to wake someone when they're sleepwalking unless their life is in danger. So what do you do instead? You film their exploits then stick the footage on YouTube, right?
Well, that's what aptly-named YouTube user stillsoundlyawake - who also goes by the name of "Nick" - did when he spotted his fast-asleep mum doing a little dance in the kitchen while talking about tomato cages. (You know? Tomato cages! Oh come on - everyone knows about tomato cages!)
Want to find out what happened when Nick showed his mum the footage of her nocturnal exploits? You're in luck! Conveniently enough, he filmed that, too...
Ah, she took that quite well, didn't she?
Perhaps Nick's game-for-a-laugh mum could get her own back by filming her son unawares in his bedroom one night, too. (What teenage boy wouldn't love that?) Or, alternatively, she could always lock him in a tomato cage...
(Hat-tip to Twitter user @SimonNRicketts for alerting us to the video/s)