At Microsoft's MIX08 conference in Las Vegas, an annual Microsoft conference for web developers and designers, many people were waiting in anticipation for Steve Ballmer to let loose. Ballmer's keynote was co-hosted by a surprising guest — early Apple employee and venture capitalist Guy Kawasaki.
On Apple Ballmer was less than praise-filled. At one point, when asked questions about Windows Vista, Ballmer distracted Kawasaki by grabbing his MacBook Air. He then held up the computer and pronounced, "You got Vista on that thing? This is heavier than my PC. It's true! That thing is heavier than the Toshiba that I carry. Where's your DVD drive? We'll get rid of this. We'll get you a real machine, and then you can e-mail me your feedback."
Kawasaki inquired about Ballmer's dislike for Apple, stating, "When you wake up in the morning, what do you think about Apple? Is it this little Chihuahua that you kick away every time?"
A very energetic Ballmer proceeded to bark and howl like a dog, before responding in a concilliatory tone, "Apple does a pretty good job, I'm not going to take away from anything that Apple does. We also do a pretty good job, and we're going to drive hard. Apple's taken away a little share."
http://www.dailytech.com/Steve+Ballmer+Gets+Candid+at+MIX08/article11003c.htm
I don't know about CEOs that bark like dogs during interviews.