I have always found the loos in HA ok, the cleaners on the other hand, while doing the sort of job I would not undertake for all the tea in china, could breaking into smile once in while. Try asking for change as well, that really cracks them up.
The biggest concern I have is when it gets to gas cylinder changing time. I am not an expert on these matters but I think smoking while changing a misslie shaped propane bottle could lead to the sort of explosion that could ruin your weekend.
The big orange sh*t suckers worry me as well. I swear i feel a draft round my arse when the pumps start up. I hope the guy never pushes the blow button by mistake.