Actually Erin you might be surprised. I was outed at work last year and the biggest reaction I got was concerned. Concern for my well being. My co-workers were worried I would not come back to work and they would miss me. Some were concerned that I would do something stupid (suicide or hurt myself). Only one person out of 50 or 60 made a big deal out of it. An that was mostly sly comments and calling me names. I put a stop to it by just confronting him.
What I though was the worst day of my life turned out to be just a little bump in the road. It also told me that the world is changing. People are more accepting than in years past. I am not saying that there wasn't comments behind my back. I'm sure there was but overall it wasn't a big deal. People still respect me and treat me the same as before. I made a couple new girlfriends that keep insisting I go out with them dressed. Also, the guys are comfortable enough to joke about it from time to time.
I may be an optimist, but I believe the world is changing and trans acceptance is coming around slowly.