I have a very difficult time with people who preface intolerant, ignorant, or plain rude statements about others with, "I know we're not supposed to judge, but..."
This also goes along with the lovely statement, "He's not a member, but he still takes good care of his family/goes to church/prays/etc."
Is this not something we were supposed to learn not to do in Kindergarten? You really can tell very little about a person by their clothing, their religion, their house, or their car. If your neighbor has four piercings in his face, you don't need to fear for the safety of your children. A black son-in-law will not corrupt your family. A Palestinian is not more likely hurt you than a Norwegian. Europeans are not necessarily morally "loose." Pakistanis aren't necessarily worse renters than anyone else. A person with an accent who calls about renting an apartment is not necessarily unable to keep up on his rent. A person living in Trenton who has nice shoes did not necessarily steal them, nor are they certainly a drug dealer. Living in Bishkek is not necessarily more dangerous than living in Los Angeles. Simply being a member of the LDS Church does not make you a good person.
These are all things I've heard people say, usually prefaced with the "we're not supposed to judge" thing. Why do we do it?
Of course, I'm judging the people who say those kinds of things, aren't I? But it's a righteous judgment, so it's okay. ;)