What do you do to cope and not go off?

What do you do to keep from going off, snapping at someone or worse? Over the years I have heard many different techniques on the ways people cope, some use yoga, weight lifting, meditation, talking walks or hikes while other use drugs or booze (how drugs and booze can be a help I don’t know when to calm down you are putting yourself in a fog. Some use sex, figure they can boink the trouble away. Some write it down diary, blog, journal, etc. Some figure they will just f*** up some one else’ day by letting just enough air from their tires to annoy then, super gluing tops on certain spices and other grocery items so when the person gets home they can’t figure out to their frustration why the top won’t come off. Some even key others cars who they feel has it better than they have.

What is your best way to cope with a lousy day, work issues, or incidences that make you want to go “postal”?