The Chelsea Lately star was a guest on Piers Morgan Live and the chat turned into a war-of-words after Handler criticised the former tabloid editor's interviewing skills.The blonde funnywoman, who interviews guests on her own talk show, told the host: "You can't even pay attention for 60 seconds. You're a terrible interviewer," promoting Morgan to retort, "Well you just weren't keeping my attention... What is your problem?"The exchange became heated as Handler fought back, adding: "That's not my problem, this is your show. You have to pay attention to the guests that you invited on your show. It doesn't matter how interesting I am. You signed up for this job."Handler then took a swipe at Morgan's show, which is going off-air soon after being axed by network bosses, adding: "Maybe that's why your job is coming to an end," prompting Morgan to exclaim, "Wow!".After the interview, Morgan sent Handler a message via Twitter, adding: "If I'm such a 'terrible interviewer'... how come everyone's now tweeting & debating our interview... mwah x."