Do you ever lose your temper?

I do sometimes and I want to get it under control. We have a new puppy, another dog, and we are babysitting DHs parents two dogs. That is a total of 4 dogs, and only our older dog is well behaved. I find my self getting SO ANGRY at them (they are seriously so bad!) and I just lose it and SCREAM at them. They just sit there wagging their tails and have no idea I'm mad! LOL

But seriously, I'd like to get a better handle on it so I don't have to scream to feel better.

Any one else lose their temper? Any tips on controlling it?