At a town hall on Wednesday, Mitt Romney was speaking with a fired up crowd of approximately 500 and one woman stood up and called Obama a "monster".
Via CBS News:
One woman became visibly agitated and called Obama a "monster" as she described the state of "this awful economy" that was ruining her son's business. Romney quickly responded that "that's not the term that I use."
"I can," she shot back. "I'm an angry mom."
"You have every right to be angry," Romney replied.
Video below (Monster comment comes at 1:50 minute mark)