LFS Quarantine policy? - based on what I saw, why bother

[b_james]

My nephew took a 10" long pleco to a LFS (no names mentioned, but I can say they are a large on-line franchise). He 'donated' the pleco as it out grew his current tank. What I saw next I coulnt believe. The sales associate reached into the bucket with his bare hands and grabbed the pleco just behind his head and litterally dumped it into one of their very large discus tanks containing aprox 40-50 large discus for sale. Am I missing something? They wont sell new arrivals until they have gone through a quarantine period, but they will carlessly dump a fish from an unknown source into one of their established livestock tanks without acclimatizing or qurantining for disease. Seems like they like taking a big risks.