Greg as a buyer - think about it

This is an absolutely true story about a sales situation I was in just last week as a buyer...

Seller: Hey Greg, I'm just calling to follow-up on the proposal I sent over...
ME: YEP...GOT IT
Seller: Any questions?
ME: NO, IT'S ABOUT WHAT I WAS THINKING
Seller: Okay, did you want to get started on it then?
ME: WELL AT THIS STAGE I'D LIKE TO THINK ABOUT IT A BIT MORE
Seller: Okay...anything I can clear up for you?
ME: NO, I LIKED WHAT YOU SENT OVER, I JUST NEED SOME TIME...CALL ME FRIDAY
Seller: Sure...
ME: OK...CAN I GIVE YOU SOME FEEDBACK AS A LIFE-LONG SALES TRAINER?
Seller: Yeah...would love it..
ME: AND DON'T TAKE OFFENSE AT THIS...BUT DO YOU KNOW WHAT I'M SUPPOSEDLY 'THINKING ABOUT'? IF I 'LIKED WHAT YOU SENT OVER', DO YOU KNOW WHY WE'RE NOT MOVING AHEAD THEN?
Seller: Wow...okay
ME: OKAY...START AGAIN...

You realize how often this happens to me? Drives me nuts! I can't NOT say something. I end doing sales training on people trying to sell me? How stupid is that?

To my manager buddies out there...have we just stopped teaching closing???