1. I try to acknowledge anytime tilt is creeping in. I talk to myself, announcing its arrival. This helps sooth me.

If that doesnt work, then there are some masking techniques you could use...

2.) Listening to music helps. Listening to some soft music relaxes me.
3.) Go into the bathroom and splash some water in your face.
4.) Take a 5 minute walk and come back. Or just take a 5 minute break to watch tv or something.
5.) Puncing bag. Get your anger out.
6.) etc etc