Sunday’s Gun Tweet of the Day arrived in the form of an ad hominem attack on gun owners from comedian Jim Carrey. Mr. Carrey announced that his new song “Cold Dead Hands” was dedicated to the “heartless motherf%ckers unwilling 2 bend 4 the safety of our kids.” That track is now available at funnyordie.com, leading some to wonder if the url is a serious question. The song’s main thrust (so to speak): gun owners have a small penis. Quite why Carrey would want to lampoon Charlton Heston’s sexual organ in particular is anyone’s guess, other than some childhood fascination with George Taylor’s loincloth in Planet of the Apes. Just sayin’ . . .