YSK: if you're used to getting a deal or discount from a couple employees at a place, that doesn't mean you are entitled to it everytime, from everyone. And by saying you are used to getting said deal to a manager, you are screwing over the employees who have been hooking you up.
from /r/YouShouldKnow
YSK：如果你习惯于从一个地方的几个员工那里获得交易或折扣，这并不意味着你有权每次都从所有人那里获得。如果你说你习惯于从经理那里得到上述优惠，那么你就是在坑害那些一直为你提供服务的员工。