How do you have a fire in a fridge.

I mean how? 

I have done some more sorting and filing and I put a big bag of stuff to the charity shop. 

This evening was a club meet, an AGM to confirm that the club will continue another year. Then we stopped meeting and started eating and drinking. A few faces were there that I have not seen in a while. Nice to catch up. 

How do you have a fire in a fridge?