I have never seen fans treat a player like that, to boo him for entering the pitch, just due to poor form, and it is to me unthinkable, unless of course it would be in an extreme situation, such as Tevez coming back or something.
When Arshavin first burst onto the scene in the European Championships, I thought he was one of the best I had ever seen. Absolutely stunning player on his day and I thought Arsenal had made a great bargain getting him for a mere £12nm (or something like that). But since he joined Arsenal I can't think of one single appearance where he reached that kind of Euro 2008 class again.
I wonder if he can get back to his best, and if it means he have to go back to Russia in order to do it.