It seems to me that people are having their empathy and 'common' decency ground out of them by society. Sure, these salespeople would sell anything to you. A commission is a commission, after all.
Ask them show you at least a modicum of respect or politeness outside of a sales environment? Sorry, you're not a potential client. We don't care. You're a non-person. Lowered inhibitions from alcohol certainly don't help the matter, either.
Sorry, I'm a bit frustrated with humanity and using far too many generalities, I'm sure.