Heh, I don't know if I'd use the word "refined" on this guy...Seems he's quite the showman.
(taken from wiki)
During the 1992 Angel Dust tour with Guns N' Roses:
At one show in Lisbon, Faith No More invited the audience to throw garbage on stage. Patton then rummaged around and ate some of the trash.
At another show in South America, the crowd was throwing empty plastic water bottles at Faith No More. Someone threw a bottle on-stage that had urine in it. Mike Patton opened the bottle and poured the contents over his head, plunging the entire audience into shocked silence.
Patton defecated in an orange juice carton and then sealed it and returned it to Axl Rose's tourbus vending machine.
During the MTV Music Awards performance of Epic in 1990, Patton flopped around on stage like the controversial dying fish from the video.
At a 1995 concert in Chile, the excited crowd began to spit on Faith No More. Patton encouraged this and even invited people to spit in his open mouth while singing. Patton stated in a recent interview he would love to come back to Chile (2006).
During a European tour, Patton defecated on a park bench in front of Kensington Palace.
Patton became notorious for talking about his sexual habits in the press. He was also photographed wearing a t-shirt bearing the image of a man engaging in glory hole fellatio and self-masturbation with the slogan "Girls are OK--but they're not the real thing."
During a Faith No More concert, Patton took off his boot, urinated in it, and then drank it.
Patton regularly did flips while singing on stage. He often landed on his back, but would get right up and continue singing without interuption.
Patton and Faith No More were famous for showing their disdain for MTV, on MTV. This can be seen in the Hanging with MTV performance during the Angel Dust era, where the band continuously interrupted a flustered VJ while she was trying to introduce Guns N' Roses' November Rain.
Patton, (whilst with Faith No More) during their encore, played their classic tune EPIC at the Phoenix Festival 1993, Stratford upon Avon, Mike whilst singing - urinated all over the security staff at the front of the stage, infront of a 58,000 strong crowd.
In 2002, Patton, this time fronting Tomahawk at the London Astoria, again exposed his penis and urinated on a bunch of photographers. Officials at the venue were horrified, but Patton claimed after the show that it was merely a squirting d---o he'd shoved in his pants before going on-stage. The admission seemed to satisfy the press. However, in a recent interview Patton was asked if it was real or not and was quoted as saying, "There's a dick. There's piss. You do the math."