See, this is all wrong. The females tested had no knowledge of credit.
What if........
one of the male flies had to go inspect a freshly created cow pie, (as flys do) but at the moment, was carrying a fake cottonball to give to his wannabe mate.
So he drops off the cottonball at her house, goes plays in the cow pie, then, goes and retrieves another cottonball and brings it to the female.
Now does that mean they go dutch on breakfast the next morning or does he get to stay for dinner that night"" Do they order out for maybe some chinese cottonballs and a movie later and go for a triple ?? Or does he go to the bar for his next conquest or back to the cow pie??
Women are so difficult to understand sometimes...:-(