A little back history I dealt with some harassment at work by a man it started as sexual harassment and ended and just plain childish harassment and a different man at work had stood up for me and I would like some help in telling him I appreciate is helping hand and concern though all of the mess..
Maybe a simple note to thank him and let him know it was greatly appreciated. I wouldn't ask him out or anything, even for a drink or something casual.. that might turn into something awkward and you don't need that.
Just tell him. Be specific. Be sure it comes from your heart.
I was tryign to think of what to day, than I read this one, and I'm like... Yeah, that's good advice.