Oh no! Might have stuffed up you experiment, man in front of me at lidl did this to me today. I didn't think much about it until I saw this thread, I just span it round, but interestingly in home bargains the lady behind me, I had failed as usual to put a divider in, grabbed one and then used it to PROD! My shopping forward!
Then again maybe I wasn't affected by this mind game is one of my top fave things to do on a study day is to swap seats after a break, THAT MY FRIEND IS A TOTAL MIND FUCK!