@ Ireland : Likewise, but it's not sarcasm, it's irony. Sarcasm is easy to detect, irony can be missed (esp. by Americans, who tend to take things on face value).
"Irony must not be confused with sarcasm, which is direct: sarcasm means precisely what it says, but in a sharp, caustic, ... manner." (Partridge, Eric (1969). Usage and Abusage: A Guide to Good English.)