Well... let me explain for both people in the thread that don't understand.
1) You used an analogy in the first sense: Just because it's something he isn't selling (but his company actually is) he should know about it. So if that's the case, he shouldn't know the difference between milk and their fat contents by volume. You likened his lack of knowledge in one area to another area since it was (determined by you) to be unrelated to his job duties. An analogy...
Analogy | Define Analogy at Dictionary.com
2) You then used a second SUBTLE analogy by inference to dismiss MY assertion that the delicious drink facts were common knowledge (which is false since I happen to have my Graduate degree in Bio-Chemistry and did my thesis paper on nutrition / weightloss). You don't have to MENTION analogy to infer one.
It could be argued that your point would have been moot even if I hadn't known the answer (which I did), since one person not knowing information doesn't universally denounce it as common knowledge. Secondly, common knowledge can be defined as (and this is how I perceive it) as information that is able to be confirmed and cited in SEVERAL different reference resources (in which it can).
ls3mach, they are working at a grocery store... I doubt they hit the books uber-hard. Not that it is a bad thing in life at all... I am just saying think about you're demographic you are polling here; Also, to assume, since your employees aren't in the know equals your customers aren't is just poor Managerial skills. I hardly doubt knowing 2% vs. Whole vs. Skim interferes with their ability to put it on the shelf. I know more about electronics than most Best Buy employees I encounter... customers do research before they buy nowadays.
Here is the last time I'll make this point:
Best Buy the company is selling the phone. If an employee works for them and that store does NOT carry said carrier, they should still be informed on how to direct POTENTIAL customers to other stores with that ability OR know what they are talking about. I do believe they can pre-order it... I don't doubt that. But I doubt it being delivered on Launch Date. I could also be wrong... it was a gut feeling.