Same here. "I've paid my taxes, and if I want to cycle in the middle of the lane at 5MPH I bloody well will." They rarely* get nicked for it, so they don't care, until they get tipped off their exercise machine, and then they'll scream blue murder about how it's everyone's fault but theirs.
*I did see the police recently stopping cyclists who sailed though red lights. Not sure if they got a ticket and points on their licence, or just a good bollocking. A good sign either way.