LOL, I went to London twice and people were not friendly to me!
(I'm not saying all people who live in London are not nice, but the people I met overthere weren't nice at all)
I'm Asian and appearantly some people overthere had problems with that. I was in line at Burger King and wanted to have some mayonaise, since the guy behind the counter did not understand what I was trying to say I tried to describe it, I went like ''It's the white sauce on the burgers'', he still didn't understand me so I gave up. When I walked away, I clearly could hear the guy saying ''Damn, those Asians annoy me''.
My English writing may not be perfect, but I'm pretty good when it comes down to speaking since I used to live in America for a couple of months. So it's not that they didn't understand what I was trying to say, because my English wasn't clear enough to them.
I also bought myself a tube ticket, when the cashier asked me if I would like to buy a Day ticket and I said no he was like ''Well, how do you think you're coming back then?'' and when I told him I would walk back so I could visit some shops on my way back he gave me this snobby look and replied with ''Whateeeeeeever''. Like what the hell ? xD
I also met this guy, who lives in London, on the internet and when I told him I liked London as a city he replied with ''Yeah me too, just sucks there are so many Asians''.
I'm not saying all British people are mean and rude, I probably just happened to meet the wrong people. xD