When I worked restaurants the crews would routinely go out drinking together after shifts.
There were issues with this including the bosses sleeping with the staff but restaurants are a different animal than retail.
They are much tighter and the stress level is different (not worse, just different).
That said, a mature and intelligent boss and team should be able to go out and have the occasional social event together.
However, from what I've seen those two words don't seem to apply too often to the stores across the country.