PF does that to you.
Educated Russians are as any other people: nice, polite, subtle, intelligent
Lower class Russians tend to congregate together and they are often loud and obnoxious
But isn't that the difference between educated people and "lower class" people of any nation? :)
A lot is being said about Russian mafia
We believe that what's most characteristic and also most scary about the Russian mafia is that they have no sense of ethics whatsoever - unlike the Italian or even the Polish mafias, where a peculiar sort of ethics is very important.
Also I remember old people's reminiscences about WWII and they would sometimes compare Russian soldiers with the German ones and picture the former as totally unpredictable and barbarian.
Yet, just to be fair, it's not like I never hear Poles talking about Russians with sympathy. I think we find them a little mysterious.
I particularly remember a Russian friend of mine I used to have back in Poland - he could tell stories! He was better than the movies :) At some point he got upset with us (the group of friends) and that wrath of his seemed to me so exaggerated; and the fact that he was unable to forgive even after long time I still find difficult to understand.
And one thing he always accused us (as a nation) of was that we "fornicate with the West". It used to drive me mad, because I believed it wasn't fornication but simply freedom we'd gained after getting rid of the USSR. Now I'm not so sure :(