Obviously we should also prohibit security guards from being forced to work before ... 9a? or after ... 6p?
I think you're missing that the relevant people would already be working at these times regardless of any extra large orange juice orders needing to be filled.
The correct thing to do is for the hotel convention manager to say "I will get you a price for that by tomorrow," and go talk to the banquet manager, who will check:
- current price of oranges, and estimated yield and wastage
- number of juicing machines needed
- number of extra staff needed
and come back with a price that reflects the costs, the hotel's desire to make a profit, and their desire to land this particular meeting.
Quick estimate:
2 oz of juice per orange, 14 oz glasses, so seven oranges per glass, 700 glasses, that's 4900 oranges. Three oranges to the pound, 1617 pounds. Allow for 10% wastage, 1800 pounds. $1.32 a pound, $2400 for the oranges. A person with a juicer and a knife can process two oranges a minute, that's 2450 person-minutes, we have 120 minutes to do it, so we need 21 extra people. We pay for a full shift minimum, so $15/hour for 8 hours for 21 people is $2520. We have pitchers and glassware already.
At no profit the cost is $4920 for your 700 glasses of no-more-than-two-hours old hand-squeezed orange juice, and now the convention manager will look at the total price for your meeting and decide what to price it at -- but $10/glass is entirely plausible.
What? There are millions of jobs that require workers earlier than 9am. So I guess you don't like early mornings, so we should shut all of those down?