Truthfully, if things bother me I rarely ever say anything right away, if at all. I tend to wait n let things build up and then... Yea. I'm not a confrontational person, so I usually try to avoid. When I'm at a point where I feel the need to address, its just best that you be careful and try to understand. I'm the kind of person to randomly cut somebody off and they have no idea why I don't use.
But something that REALLY pisses me off is people testing me (in a way as if they're trying to embarrass me). Like this girl at my job.
"What project you working on today? I thought you finished that yesterday?"
I slightly snapped last week. "Gorl what are YOU working on? Besides walking around and getting coffee". I threw a "KI" at the end to ease the blow. People up here got too much mouth for me....

And she honestly probably didn't even mean harm.