I just shook hands with a very nice engineer who decided to introduce himself after we bumped into each other in the kitchen several times. I then washed my hands because that was my original intention upon entering the kitchen. I did not wash them because I shook his hand. The poor engineer probably assumes I was disgusted by his touch. Oops!
Have you ever made a social gaffe like this one at work or in another setting? How did you recover from it?