You are dillusional.
Lets take this matter to court shall we?
I paid a representative of the company for my purchase.. lets show the video tape. Yep, there I am.
I am leaving the store with my purchase.. Yep there I am
I am detained by an employee of the same company I just paid for the item that has now refused to let me leave the premises.
Now, this secondary employee has ZERO cause to believe I have stolen this item, they have not witnessed me engage in theft nor have the been informed by another that they witnessed me attempt without paying for it. The only justification they have is that I didn’t respond the way they wanted me to when they asked me to show my receipt.
Sorry, that in and of itself is not probable or just cause to detain me, and they have now engaged in illegal imprisonment, and Wal Mart just had to pay out a check to me for it.
If I was on any such jury I would agree that it is indeed reasonable to suspect theft if someone refuses to show their receipt. "Reasonable cause" is not the same thing as "proof of guilt", and I think that's where you're getting confused. If there is reasonable cause, then they CAN detain you until it is sorted out. If the customer wants to PREVENT it being sorted out by simply showing the receipt, then tough luck for him... that was HIS choice.