That would be bloodstream
Under most normal circumstances and as an EMT. You should just turn off power to the fridge using the fuse box. However in this circumstance your best answer is to pull him away using a nonconducting material keeping yourself away from the fridge as much as possible. You would move him a safe distance from the fridge and listen for a pulse, breathing, and just to see if he is conscious. If he is pulseless, Apneic (not breathing), and Unresponsive you start CPR.
The answer is evolutionary!
I hope I was able to help. :)
One of the main reasons why life expectancy dramatically rose in the past century was due to different factors. One that surely contributed to them was better access to medical equipment and medical advances themselves. As well as better nutrition that was available to the common person.
