I think I would have been more annoyed by the mislabeled drink, the amount of sugar in a regular coke for example over a diet version would send me absolutely sky high and not knowing would be dangerous. I have had suspicions about being given the wrong drink before and it drives me mad, my old meter you could test the drinks, but alas not with my new meter! It also makes me laugh because when our Safeway became a sainsbury's they kept the drinks fountain which is the only one I had ever seen that had a label on the regular coke saying 'warning: not suitable for diabetics'!