Car salemen are most confused if you don't comply with their expectations on this.
My wife was after a new car. She compiled the specification, found a suitable dealer, took it for three or four test drives, established a business relationship with the top bloke, negotiated a substantial discount and then called me in. As we were buying it through my company, I had to go and sign the paperwork.
The bloke said, "She knows what she's talking about, your wife, doesn't she?"
"Yep."
"She's a tough negotiator too."
"Yer telling me."
"I know the car's primarily for her, but would you like to take it for a spin before you sign?"
"No, thanks."
"Are you sure? It's a wonderful machine. Your wife opted for the auto-overcrank sports thruster and the direct shaft turbo vroomy eco-powered spondoolick modular drive."
"I didn't understand a word of that. Really, I'm just not in the least interested in cars."
You could see his world tottering. This was beyond his understanding.
"You do drive though, don't you?"
"Oh, yeah. I have my own car."
"Ah, there we are. Good - what marque do you favour?"
"Come again?"
"What kind of car do you drive?"
"Er...it's a black one with a nice face."
...I really thought he was going to burst into tears.