Why do they do it?

 Why do some people annoy me more than others?

What is it that sparks my indignation, or anger? I wonder, because it bothers me to feel those things.

 I spoke about it with my son and he thinks that maybe these are people who try to purposely be crass. They express themselves in rude words and phrases. Possibly thinking it makes them cool, or sophisticated, but possibly just out of sheer ignorance.

Or sometimes they say the same crass thing over and over. Are they waiting for me to comment on it? Some stubborn part of me wants to ignore all their needs in that moment, but it doesn't seem to discourage them.

I wonder if they are simply unaware of who they are, would it be a kindness to tell them? It doesn't feel like it to me, but them I would be appalled to hear these things said about me. These same people talk about the "bad" things others do and mention numerous things they do themselves, which leads me to believe they have no idea how they are coming across.

How do you tell someone you love that they are saying crass things, talking with their mouth full of food and complaining about the very things they do? It makes me wonder if they do it on purpose as a passive aggressive way of expressing their anger with me. Frankly I would rather they just tell me what is bothering them.