Wait, are you sure it flagged 6 separate people and not the same person 6 times? I only ask because those cameras tend to bug out on one shopper and keep re-flagging them over and over. My brother works at a grocery store and says the system will lock on someone, they fix it, and then it does the exact same thing two minutes later when they grab the next item. The grape lady probably set it off twice just by moving the bag around. So the "6 people" thing might really be like 2 people getting nagged to death, which actually makes the whole thing seem even more useless. Either way your point stands, nobody walks out of that store feeling like they won.

Reminds me of the time my tailstock was drifting a hair and I blamed the tool post for a week straight. Funny how the gremlins always hide in the spot you check last.