What is the fine-grained topic of the following text: Particularly after yesterdays service where a couple of us were commiserating on how hot it was in the parking lot (88 degrees) and that we had to change shirts 3 times, which was between the times we got to into the air conditioned school to get a cold filtered glass of water with ice in it, a nice fresh doughnut or nutri grain bar, after having been delivered McDonalds biscuits (by the way we complained about not having cheese on one of the biscuits). Only return the topic.
Complaining about hot weather and food during a service event