Diego Stocco creates musical instruments, writes compositions to incorporate them all and then performs each part. Lazy bum.
Have you read the story about the conductor who called out a concert attendee whose cell phone kept going off? That's one approach to dealing with a performance interruption, but this violist has another that I quite like. According to an article in the Huffington Post this is legit and not some kind of PR stunt.
Here's a young talent by the name of Ranford Almond performing on the streets of Greensboro (found at Roch101)