Training is key to going through the motions in the every day environment. When you are, for instance, trained to spot threatening body language, you nail it. However, I still don't realize when someone is simply being rude a lot of times. Also, a couple of weeks ago in the jail, there was a guy who was acting upset and wanted to be placed in a different block.
I completely missed what he was saying when he said "It's too dark in here", as I thought he was referring to the lighting. I told him the lighting was the same in all the other blocks. Then he pulled down his shirt collar and showed me the Nazi SS tattoo he had on his chest. Ohhh! Ok, you mean there are too many black people and if they see that, you're in trouble.
I might be a veteran, but I will miss things if you don't just say what you mean. At least I had the wherewithal not to tell him I am a Sephardic Jew.