Prof may not remember having said this; but I remember when first starting out the Prof had said to me in an email correspondence that if I were successful at this: that I would probably make most of my money off a handful of people.
He was right.
Forever the student, I bow to the master and am grateful for his words of wisdom.
I say this having just in the last couple of years taken on four new daughters of which two are teens now and I fully expect I will be needing some advice from him in some aspect to dealing with all the boys that come around (I wouldn’t mind it so much but they could eat a side of beef in a single setting and worse… they keep playing with my toys) 
Now if he can tell me how to run off potential boyfriends and “friends” that aren’t boyfriends from teenage girls…