Sometimes. I tell people what they want hear to a certain extent so I don't come off as unpleasant most of the time. There are definitely circumstances that I won't bend for, though. If I really don't agree with something someone else is doing and it involves me personally I'll definitely be The Bad Guy if I have to be. I've been in a lot of situations where I've been expected to help people delude themselves and I really just can't play along, mainly talking about family substance abuse issues...I have a drug addicted mother whose in and out of recovery. We have a pretty crappy relationship and are now almost completely estranged because I refuse to play her games. I have a VERY limited supply of sympathy for people who believe that they need a crutch in life(one that does more harm than good, anyway), I can come off as being very insensitive when it comes to this issue.
Anyway, in my younger days I was almost always The Bad Guy because I actually LOVED to argue so I never kept my mouth shut. These days, not so much.