@squirbel – An interesting comparison. However, caffeine does not impair one’s judgment.
I respect your integrity as a barista (choosing not to indulge too much), but I argue that the only way for someone relatively new to the coffee world (such as myself) to learn about their beverages is to drink them. By drinking lots of coffee, I become more knowledgeable and can connect with customers.
Again, I think your position is respectable, but I hope that you don’t look down on us that take advantage of access to better coffee and allow ourselves to enjoy it.