Throwing food isn't a new phenomenom amongst DJs and musicians. There's a the classic rotten tomatoes you might expect to receive on stage if the audience doesn't appreciate your performance. Whlie unpleasant, this wasn't a show-stopper when instruments on stage were all acoustic. But in the age of synths, laptops and fragile turntables, throwing food or drink at a DJ, towards a DJ, or in th direction of their equipment is a definite no-no.
In this case, however, one fan got caught up on the moment... you see, apparently it's a bit of a well known thing for Steve Aoki to throw cake at his fans during when DJing. That's exactly what he did to celebrate his 39th birthday, and the 20th anniversary of Dim Mak Records.
What Steve Aoki didn't count on was one of his fans throwing a cake at him, which unfortunately partly landed on the DJ gear in the booth, caused the turntables to grind to a halt, and generally ruined the party and messed up the vibe.
But then again. If you do throw a cake at someone, don't be surprised if they throw some of it back.
Here's a video tutorial on scratching fades from the course: