I left my old barn because of the same situation. Not so much the hostility part, but overworked. First of all, I will say I get along great with the BOs and most of the boarders and they BOs did really help me out for a while, but that's a completely different story.
Anyway, outside board for them was $385. If you were an employee, who were high school and college students, except for one full time person, you got $100 off down to $285 and we were paid what was supposed to be $8/hour, but only being paid for 3 hours, so the pay was fixed regardless of how long you were actually there. The problem was it never only took 3 hours. There were days when I'd be there for 6-7 because sh*t was always hitting the fan with something. Equipment breaking down, weather, cranky boarders, etc. This was in addition to being a full-time college student with another part time job.
I had left for the summer and when I got back, a girl I worked with said she left because they weren't giving her the $100 discount anymore because they had just lost several inside boarders so it wasn't worth my time to try to figure out how to pay almost $800 a month just to have somewhere for my horses to hang out because I'd be like you: too tired to even do anything with them.
The facility and most of the people were awesome, but I'm broke yo.