They are even dumber for not being able to tell what they were drinking. I can taste alcohol in even the best mixed drinks. You would have to significantly dilute alcohol for me not to taste it. Secondly, how can you miss the buzz? That is purely physical. If I had some water and someone told me it was Gin I would know within one drink if it was gin or not. Were they doing this study on people with an IQ lower than 50 or no experience with alcohol? Sounds like it.