I can't prove it, but there's a florist in my town, definitely still in business, that I have not seen a non-company-branded car in front of in actual years. Morning, noon, and night, never any customers. Never any movement from inside. The only time I ever saw the lights on was in the dead of night. The building is half-claimed by ivy.

If it weren't for the upkept greenhouse and the sign out front occasionally changing, you'd never know it wasn't totally abandoned, but it's still operating. Mob activity is the only way to explain it.