pirate's guilt

The feeling of wrongness one feels when accepting something from a vendor for free/ payment optional where the person would otherwise be perfectly fine taking it from a third party for nothing.

"Hey man I looked up that album you told me about on the bay and couldn't find it."

"Why not get it from their site? It won't cost you anything."

"It's, I dunno, the principal of the thing, y'know, it's..."

"Pirate's guilt?"

"Aye."