My guess is that one of their vendors gives the raw birds a chlorine bath then fails to rinse it properly. The other possibility is that the vendor dunks the chicken in airline toilet bowl cleaner bought cheaply, to save pennies. Bowl cleaner now comes in barbeque flavor, lemon pepper, and standard. I know this from tasting my bowls.
My guess is that one of their vendors gives the raw birds a chlorine bath then fails to rinse it properly. The other possibility is that the vendor dunks the chicken in airline toilet bowl cleaner bought cheaply, to save pennies. Bowl cleaner now comes in barbeque flavor, lemon pepper, and standard. I know this from tasting my bowls.