I remember years ago working the jewelry counter at a former employer.
My customer was buying a diamond bracelet for his wife, one for his girlfriend, and one for his lady on the side. No comment...
Anyway, the store manager walked up, and kept pressuring him to open a credit account, "You'll save 10%! It has lots of other benefits too... blah blah blah."
Eventually the customer looked at me, apologized for wasting my time, and said he was leaving; he figured that paying with actual money in his actual wallet was apparently not what my employers were interested in.
I just turned and stared at my dumbfounded manager until he slunk away.
And that's how my store manager lost a huge sale...