and http://reason.com/blog/2011/10/24/substitute-teach-for-one-day-q
Two union lobbyists each work 1 day as a school sub, now eligible for $millions in pension benefits.
The investigation found Steven Preckwinkle, the Illinois Federation of Teachers' political director, and fellow lobbyist David Piccioli had used a now-closed loophole that allowed them to count their years in the teacher union toward a state teacher pension. The two lobbyists had no prior teaching experience before they substituted a day, a union spokesman said.