Two things:
One: A friend of mine has started to grow sub-facial hair. That is to say, it's hair growing under his chin and at the very edge of his jawline, but not on his actual face. He calls it an Abraham Lincoln. He told me he was inspired to grow it by my example.

I'm always a little shocked when my friends tell me I've influenced them in any way. I see myself as a follower. I dispense advice and opinion freely because I assume no one will take it seriously. On occassion, someone tells me that they do, and it throws me for a little loop.

Two: Speaking of influence, I just realized that the beard I have grown belongs, at least in part, to Umberto Eco.

Not that he would want credit for said beard ...

although he might be a amused by the possibility of a beard that has its own double-coded subtext of literary influence, a subtext which was not consciously intended by the beard's author.