Figure out what to wear in minus 18 deg. weather
Get to the start
Run 8 km and don't stop until your done.
Then you get a steamy bowl of oatmeal and to feel like you did something.
Or maybe you need some some Haggis-that infamous food of Scottish tradition. The ingredients include the sheep's pluck (heart, liver and lungs) as well as onion oats, suet, spices salt and stock.