Angle-Grinder Man!!

"As is so often the case, the trickiest part came when he had to explain himself to his family.

"I got kind of a lukewarm response," said the masked Englishman who calls himself Angle-Grinder Man and who has been trawling London for four months dressed in a homemade superhero outfit, complete with gold lamé underpants and cape, removing the security boots from people's illegally parked cars."

http://www.nytimes.com/2003/10/07/international/europe/07LOND.html?8hpib