Rights Violation or a Complete Jerk?

[swirly]

The guy is a complete douchebag. End of story.

You are not standing up to "The Man". This is private property. Nobody is forcing you to go into the store. It's a search of the bag, not a body search or something crazy like that. If I thought you stole something from my house, I can't stop you? Now certainly, if you were a guest and I pointed a gun at you that is unreasonable, but asking to see a recipt? What do you think the recipt is for?
He should be donating ME money for having to read that.

Specifically I'm replying to "If I thought you stole something from my house, I can't stop you?". One of this guy's main points is that this isn't a case of suspicion. There was no "I thought he stole something and so asked to see his receipt." This is a case of searching without suspicion.