I have a tendency to let frustration build up until I lose my temper. The issue is that I don't realize I'm doing it until I'm ready to explode. My last dog was so sensitive to that, that she could tell when I was starting to get angry before I would realize it. I would be sitting at my computer, struggling with something, and I'd feel her poke me in the leg with her nose, then I knew it was time to take a break. I think she could hear that i was typing 'harder' when I got angry, but it could have been any one of a lot of tiny signals. Point is, she was consistently aware of me getting angry before I was. I miss that dog...