Crowdsource Research Challenge?

Yesterday, Mike Huckabee told Politico that he wants Mitt Romney to apologize to him, for telling lies about Huckabee's record. Imagine -- Romney apologize! Good one, Huckster!

It got me to thinking: has Mitt Romney ever actually been seen personally apologizing for anything? I know he has, on rare occasions, apologized through spokespeople (for use of the term "tar baby," for instance). I know that reports have sometimes referred to him as apologizing for something, when in fact his wording never contained an actual apology or acceptance of responsibility.

I'm just curious. A quick web search didn't bring me any immediately obvious examples of Romney apologizing. So I'll throw it out to you folks: can anyone come up with an instance where the Mittster personally apologized for something?