Honey, here's $10. Go buy yourself a little bit of happy.
yes VERY worried......
Well, I would not worry too much about it, since you've used the fan before, yes? Then fear not, Optimus Fan obviously waits until you are soundly sleeping before dashing off to protect our fair city, and is returning before the heat wakes you. Very considerate. He is a good guy after all ;)
I'm glad it's not a Decepticon! That would be verrah bad.