Historic Ptomaine Burger Incident - Jack in the Box, Mesa Arizona

5961 East Main Street, Mesa, 85205 Arizona, United States

This has been over 25 years ago now, roughly in 1996, but I wound up getting a ptomaine burger from there in Mesa, Arizona while I was going from one of my employer's premises to the other's. I got on US 60 headed for I-10 then unwrapped my burger and bit it. And promptly spit it out. I could taste the rot. I managed to avoid soiling myself until I got to work, but I didn't even make it inside the door before I did exactly that. I haven't eaten there since.
This is primarily of historical interest; still, it is a data point (admittedly, with a sample size of one) that may be useful to somebody in the future.