I think you have experienced what they call the "iceberg theory" meaning that you have no idea of the background as to why that crew member was angry. There could have been many reasons for this, but she should have kept her profesionalisim and kept it out of the cabin. Letting a drunk on board is a difficult one......many people board looking ok, but when the air pressure hits them, they can appear to be way over the limit!!!! Air pressure works in strange ways... the say 1 in the air is the equivelent of having 3 on the ground. If they were pressured with time constraints, then it would be wuicker to keep him on and go, rather than to take another delay and look for his bags when he is offloaded. And for such a short flight, ( i.e BFS-GLA/EDI (20 mins )) It really isn't worth the hassle - not saying its right tho
For such a short flight, yes there would be no refreshments available, but you have to remember, the cabin crew are stuck on that aircraft for many hours, without getting the opportunity for a break, or even getting off to buy food, so yes, they are entitled to eat and drink aven when there is no service to the pax. They do need to eat also. They could have been on that aircraft for 8 hrs before you came on. But if the service was shoddy, write to the airline concerned, and voice your concerns.