From (yet another) former barista.
  1. Effectively nothing.
    It's not what you order; it's the way you order it. I was (& always shall be) thrilled to make any drink, however complicated or not to my taste it is, for people who treat/ed me with human decency/kindness.
  2. Order whatever you want whenever you want it.
    It's your money. They're your tastebuds. And you contain goddamn multitudes.
  3. Anyone who judges or tells you otherwise can go to hell.
    No matter what side of the counter they're on.