There seem to be a few controllers on this thread stuck in a civil service type mentality.
If a shop has too many customers, you employ more staff, not shut it at its busiest periods. You should remember that we are ALL your customers (and paying the govt tons of money through fuel duty for starters) and your job is to assist us, not moan because we're there.
If you are understaffed, what are you doing personally about it? Just waiting for an accident to happen so that you can say I told you so?
(All hard-working, non-moaning, helpfull and friendly controllers (which I accept is the majority) excused from this rant).