A brief play:
Me; "that bike will fit your daughter but not your wife"
Husband Father: "what if we just raise the seat"
Me: "the seat is almost maxed out and will not work for your wife who needs the bike"
Husband Father: "I have been riding my bike for 30 years I think I know this"
Wife: "Maybe we should listen to that handsome dashing man"
Me: "Sir, I do this for a living, this is how I pay my bills, I study my product and I study fit and I don't take it lightly, I am a gear nerd and a bike addict"
My mechanic . (in the background semi quietly to himself) "DAMN HE JUST DROPPED THE BOMB ON HIM"
Husband Father: "uhhh....well I like the bike"
Me: "Ok then let's get her on the bike that fits and have her test ride it and see what she thinks"

End Scene

I may have padded the wife's lines a little bit with some words she may not have said but they were implied Oy vey I live bikes and work hard to learn what I can and be the best damn student I can be and this guy rides an old Gary Fisher (possibly pre-Trek) and thinks he is Mr. Black Belt with a belt he made himself out of a plastic table cloth he drew on with a black sharpie. Riding a bike will tell you that you ride a bike in some capacity and may or may not have picked up some knowledge here or there that might possibly have a small token of relevance. Aside from that I am unsure who he has talked with on fit or what he has read but a small bike with a almost maxed out seatpost for someone who is too tall for it DOESN'T FIT!

Sorry for the long venting session. I cannot talk to my friends they are all sick of stories like this or me rambling about bikes. Also go out and see BlacKkKlansmen, really excellent movie though seeing "Eric Forman" and "Steve Jobs" as David Duke was odd for me but he did a decent job of it.