Firstly, I started the day in a 45 minute queue to drop my bag off in Manchester airport. BA have 6 desks, and 2 were open. A nice stressful queue to start the day. Cue an hour delay on our flight to Heathrow. Nevermind I thought, our flight from Heathrow is in 3 hours so it will be fine. Got to Heathrow and our flight to Las Vegas was also delayed by an hour. On this 11 hour transatlantic flight; I had my worst ever long haul experience and I would never recommend that anyone flies with British Airways. Our flight was at 4pm (UK time), the first meal came round about 2 hours anto the flight, they get to us and say they only have vegetarian left, this isn't acceptable. Then 3 hours into the flight they turn the lights off and turn the heating up high. It's 7:30 in the evening. They clearly want everyone to sleep so they don't have to do their jobs and serve us. I can't sleep in that heat and I'm on my way to Vegas so was watching a film or two. I asked for some more alcoholic drinks as I'm going to Vegas and would like to go out when I arrive (nothing excessive, just leisurely beers watching a few films). I'm told that the bar is closed because they need to save the stock for the return journey. This is 3 hours into a 11 hour flight to VEGAS and they don't have alcohol. This is APPALLING Service. Then 2 hours before we are due to land (1am UK time) the light get turned on bright and they come round with more poor food. Plus this time, one of the air stewards who was a rather large gentleman, showed us the top of his buttocks while bending over into the trolly. This was a very unpleasant and nauseating sight. The crux of the matter is BA doesn't seem to like or look after its customers, there are lots of good haul airlines out there. As an Englishman, it upsets me to say the my home country's airline is the worst I've ever used for long haul.