Three letters. LHR. That makes your home base worse than pretty much anywhere Easy operate to, and you'll be there 50% of the time. That gives you plenty of opportunity to interact with the more militant/inept/understaffed departments such as cabin crew, ground staff, dispatchers, tug drivers, bus drivers etc etc. Add in utterly unrealistic schedules (35 min turnaorund for a full 319 with cleaning and recatering) and you'll soon realise you're on a hiding to nothing for the rest of the day and the only way to reduce the stress level is to say "f*** the schedule" and work at your own pace. Sad but true.