What don't I do!?
If I'm stressed or annoyed about something and someone in the family irratates me even more I throw a tantrum (one day i kicked a shoe into a window. If I could kick like that on demand I'd be a star soccer player, funny thing rage can do to you.)
Or I'll listen to soothing music, or play some sort of videogame, anything to isolate myself until I cool down.

BTW Skarr, I understand your pain of having a pain in the arse boss!