“Customer: I'll have the steak burger.
“Me: Lovely. What would like on the side?
“Me: (rushed off my feet and annoyed we have to have this conversation) Yes, what type of potato would you like, sir?
“Customer: (looks slightly bewildered) Umm, well, what do you have?
“Me: Chips, mash, baked, boiled, (etc. etc. etc. ad infinitum). (My brain: that's it, I'm outta here!)
“Customer: Chips, chips! (as though it was a stupid question to begin with)
“Me: That's great sir, thank you. (My brain: I will burn your village to the ground.)
“I fought the urge just to bring them out a raw, unwashed potato. Now, you might ask, why bother asking how they'd like it, if you know they want chips? The answer is because customers are shifty, elusive, and unpredictable. Whenever I just went ahead and put the order thru with chips as the side, it was almost *always* wrong and I'd just wind up doubling my workload to correct the mistake.