Why are the Iraqis so ungrateful for us liberating their country? Some terrorist threw shoes at President Bush?

I am just waiting for us to leave that piece of sand. My brother is still over in that place and while he says most of the iraqi's like the american presence, people like that are gonna get what they deserve in 2011 when that country has another civil war or gets run over by Iran. Also to the people who think Saddam was a better influence on the country just remember his 2 sociopath sons favorite past time of putting people in wood chippers feet first.