"I'm not going to have blood on my hands by voting for the lesser or greater of two evils"
I never thought of the GREATER of two evils side of things.
Next time we get the "lesser of two evils" argument, maybe the response should be something like this:
Them: Well, you have to vote for the lesser of two evils.
Me: As long as you plan on voting for evil, why not vote for the greater of two evils?
Should drive home the point -- and make them admit they don't know what the hell they're talking about.