Dear Vending Machine in the Math and Science Building,
After months of hard, back-breaking, tongue-searing work, I have finally instilled a Pavlovian response in myself that causes me to crave sour candy every time I begin my trek from the Modern Languages building to the Math and Science building. This has been difficult, as I have had to eat Sour Patch Kids or Sour Jacks in nearly every Statistics class period in order to achieve this outcome. Had I not been so dedicated to this cause, I certainly wouldn’t have had a true Pavlovian response (minus the drooling). My dedication has truly been inspiring to my peers and sour candy eaters everywhere.
But you, you conniving, horrible villain…You have ruined me. Basically, as soon as I had developed this response, you stopped carrying sour candy. Gone are your plastic-encased, citric-acid-coated wonders. Gone are my dreams of a headshot in the Pavlovian Hall of Fame. My hopes and cravings for delicious, chewy Sour Patch Kids (and delicious, chewy success) are disappointed day after day. My Pavlovian response weakens every time you fail to have the proper candy, keeping me from reaching my goals.
I just hope you realize the magnitude of what you have done. I will not be speaking with you until you rectify the situation.
P.S. No, Swedish Fish are not an acceptable replacement.