Drive-Thru workers

There are many things that can annoy me, it's true,
but my biggest pet peeve is the workers at the drive-thru.
I might order a chicken sandwich and fries
but over the years I have come to realize  
if I say "no mayonnaise" they'll give me plenty
and if it's three dollars they'll charge me a twenty.
They get everyone else's orders right with consistency
but mine they mess up with incredible frequency.
What is it about me that makes them mess up?
Makes them forgest the pickles and the ketchup?
It's not only the drive-thru but restaurants too;
I'll get pork instead of the cow that says moo.
If I ask for a lemon they'll give me a lime
ninety-nine point nine percent of the time.
My fries are all curly instead of straight
And the rest of the food sitting on my plate
is probably something that I don't really like
like saurkraut, brussel sprouts and English tripe.
But at the end of the day it doesn't bother me
'cause they make up for it by letting me eat free.