I've heard people say cell phones are rude. I say cell phones are merely a tool, it's the people that are rude. Give a rude person a cell phone, and they'll be rude with a cell phone.
During a live performance by Slovakian violinist Lukas Kmit, someone's Nokia went off. Instead of storming off the stage, Lukas made lite of it and mocked the ringtone. Check it out in this video..