Grow It Back, Dad!
As a mustachioed man myself, I know first-hand what kind of reactions you can get when you decide to surprise your family by shaving off the whiskers they've grown so accustomed to seeing.
I've had a mustache for nearly 35 years, but when my kids were small, they pointed out that they had never seen what I look like without it. I decided it might be fun to show them, so I shaved it off and walked downstairs to gauge reactions.
They were not good. Consensus was reached quickly. I was to grow it back immediately, and I was not to experiment like this again. And, I haven't. It's here to stay.
I'm sure this dad has a similar feeling:
Now, put down that razor, you're frightening the children.