In January, Sen. Thad Cochran , R-Miss., told The Boston Globe that, "the thought of (McCain) being president sends a cold chill down my spine. He is erratic. He is hotheaded. He loses his temper and he worries me." (Cochran has since endorsed McCain.) McCain called Cornyn's claim "chicken-s---," according to people familiar with the meeting, and charged that the Texan was looking for an excuse to scuttle the bill. Cornyn grimly told McCain he had a lot of nerve to suddenly show up and inject himself into the sensitive negotiations. "F--- you," McCain told Cornyn, in front of about 40 witnesses. "McCain kept pointing his finger in Wexler's chest, berating him," Hinz recalled. The 6-foot-6 Hinz stepped between them and told McCain to cut it out. "I told him I'll make sure there's an egg crate around next time," he said. McCain walked away angrily. About a year later, McCain reportedly erupted again, this time at a meeting with Arizona's then-Gov. Evan Mecham , who was about to be impeached after being indicted on felony charges. Karen Johnson , then Mecham's secretary and now an Arizona state senator, recalled how McCain told Mecham that he was "causing the party a lot of problems" and was an embarrassment to the party. "Sen. McCain got very angry," Johnson recalled, "and I said, 'Why are you talking to the governor like this? You're causing problems yourself. You're an embarrassment.' " McCain's history of hot temper raises concerns - Yahoo! News John McCain is not a person stable enough to be in the White House!