Tom Tierney is a dick. He cost the GOP their last State House seat in Framingham, and actively worked in the somewhat competitive race in 2006 to make sure the GOP wouldn't get one back.
details?
He ousted State Rep. Barbara Gray in a 1990 State Rep primary. Although the gain was technically temporary: Gray got enough write-in votes in the Democratic primary at the same time to win her seat back as a Democrat.
He's one of those conservative-at-any-cost type candidates, and I'm ashamed to say that I didn't personally try to recruit a far stronger candidate for that seat.