If you thought Sarah Palin's "lame map" (per Rush Limbaugh) with crosshairs over Arizona was in poor taste, what about the blog by Travis Corcoran, a Massachusetts-based comic-book retailer? His blog post on the shooting of Gabrielle Giffords is entitled "1 Down, 534 To Go," and reads:
"It is absolutely, absolutely unacceptable to shoot 'indiscriminately'. Target only politicians and their staff, and leave regular citizens alone. Please!"
He followed up his post—after receiving a storm of criticism and after his Heavy Ink company became the target (see how those shooting metaphors work out?) of a boycott—by further explaining he feels everyone in the government is an enemy of the Constitution. He believes every member of Congress is the same as Hitler, his example being that we'd all kill Hitler if we could go back in time to his childhood—this guy really is a comic-book nerd. He is also anti-choice.
I think it's extremely hard to boycott businesses based on what their owners or higher-ups believe or support, but this case seems pretty cut-and-dried.