The Sales Definition of "Know"

One of mentors, when I would mention anybody, would exclaim "I know him!" After a while I just rolled my eyes when he said this. After a few more years of sales experience I figured out that "know" is thrown around quite a bit and can mean a whole range of things:

1. I was best man at his wedding - we are like brothers.
2. Would let me babysit his kids
3. Invites me to his house for dinner
4. Has accepted a dinner invitation to my house
5. We do lunch
6. Will return my phone calls
7. Would recognize me in a line-up
8. I would recognize him in a line-up
9. I recognize the name
10. His company sounds familiar

About the only way "know" is not used in sales is in the Biblical sense.