Last century, before the days of caller ID and cell phones displaying the caller's name, my friends and I used to make prank phone calls.
One of our favorites was to call a random number and ask "Is your refrigerator running?" The normal response was, "Yes, of course."
Then we'd cackle and say, "Better go catch it before it gets away!"
Why we thought this was hilarious must have been the result of adolescence.
As an adult, having a running refrigerator, especially living in a motor home, is crucial!