And what seems like millennia ago now, when General Wesley Clark was auditioning for vice president back in early August he decided to overly challenge John McCain's military record. He's now pretty much living in political outer space.
But how are people supposed to know what is off-limits and what is OK to say if they aren't paying attention to the political news every day?
First, if they are chosen to speak at a rally to introduce a candidate for president or vice president, chances are they're paying attention. These people are rabid political junkies.
Second, the campaigns brief speakers ahead of time as to what's acceptable.
Despite this, a campaign can't control everything.
Take Lehigh County Pennsylvania's Republican Party chair William Platt or Florida's Lee County Sheriff Mike Scott. Both men served as speakers to warm up the crowd before John McCain or Sarah Palin came on stage.