Just curious, did they "snicker" and "whisper" at you? Or something that just amused them? That they found amusing during the run maybe? I ask this because I was accused of the same thing. And when the person found out that my quick laugh was about had nothing to do with what he thought, he apologized to me and my Sgt. It was no big deal in the end, and I was not offended because it was not what he thought. But he thought enough of it to say something. If you are perfectly confident of that episode,