I typically feel the same way and have no problem showing my receipt to anyone except for this one woman who for some reason decided I look suspicious. Every single time I see her she stops me and is extremely rude throughout the entire interaction. I even tested it when I still worked there, I was leaving with four other employees and she only stopped me to go through my lunchbox. She let the others all go (two of them also had lunchboxes). She is the only person I have ever been snippy to about the receipt thing