This is the first thing to do in any stressful situation, or indeed whenever you snap out of a period of daydreaming, concentration or whatever.
Drop your shoulders, unclench your jaw and take a big fat deep breath in through your nose. Try and inhale s-l-o-w-l-y, counting to ten (or eight, whatever).
Breathe out (for the same number of counts as your in-breath), again through your nose.
Repeat this at least five times, depending on where you are.
You might be in the toilets at work, crying ‘cos you’ve royally fucked up in a big way. Or you might have been summoned to the boss’ office and scared you’re going to be sacked.
Someone might have cut you up in traffic, or you’ve just received an unexpected bill to pay.
The washing-up has piled up, the rubbish bin is over-flowing AGAIN, you’ve run out of milk.
No matter the situation, whenever you feel like your emotions are about to have a wobble, remember to take time out and BREATHE.