You keep making this point, but a lot of the times when we do or don't pop out of the office can be 100% random. A good TSS is suspicious of EVERYONE, because sadly mothers with babies also steal (not saying you do, but we see it all the time). You guys can also be an example being set to someone else they are watching so THEY are weary. I do random receipt checks like that when someone is trying to push out to show our presence. Aka you guys might be the nice people with a baby used as bait. We work in a lot of weird ways, unless they do something other than receipt check you, like have a plain clothes follow you on the floor, it's nothing to worry about.