When you give in to aversion and anger, it’s as though, having decided to kill someone by throwing him into a river, you wrap your arms around his neck, jump into the water with him, and you both drown. In destroying your enemy, you destroy yourself as well.
- Chagdud Tulku Rinpoche, "Putting Down the Arrow"
I always love these kind of reminders from Buddhist teachers when it comes to anger. It is perhaps most apparent to me personally when I get angry with my immediate family. Being angry and feeding the anger immediately causes hurt and pain for the whole family, myself included!