Be honest: Do you often resort to fast food on shift?
I used to. I have been fortunate that a recent job change has allowed me to eliminate fast food from my work diet. Although in the last few months with my old employer I had resorted to packing sandwiches or something that I could take with me in the ambulance that did not require refrigeration or heating. This got old after a while, but it was still better and cheaper for me.
I do know of one 9-1-1 ambulance that has a refrigerator on it, however it took away a lot of storage space. I think that with better designs, we could provide a fridge and maybe even a small microwave without affecting the functionality of the ambulance.