I've been to quite a few Subways and while some of the employees can be very friendly and helpful, there are also a lot of very impatient ones that you can tell don't even want to be there. One of my local Subways has a menu where you can just check the toppings, bread, and sides you want, and I find that a lot easier and less anxiety-inducing (for me). It is especially easier in the drive-thru where the speakers are muffled and it's easy to mess it up.
Actually, @gernericname85, this Particular Subway I go into is Very Accommodating and the Staff real Friendly. They are not Scared to Stuff my Sandwich, and they are well Mannered enough to Answer any Questions I Might have about Anything new or old I might Want to Order. If they are Handing you Attitude, it's because they just Hate their Job and Probably should Move to the Back of the Line and find a new One... If they can. Good luck and Consider the Source or Find a different Subway. xx
I've only gotten a Bad service from subway once. The guy gave me my orders wrong and I ended up eating a calorie bomb instead of the lower cal Version. And he wrapped it like a 3 year old wrapping a present. You should know how to order though after going there just once lol. Choose your sub, then choose your bread. Then choose any extra cheese or meats, then what veggies you want, and finally your sauce. I always ASK them in the sauce part "what do you recommend with that?" and then take whatever they recommend. It would make them happier, I guess lol