a) sar·casm Pronunciation Key (särkzm)
n.
A cutting, often ironic remark intended to wound.
A form of wit that is marked by the use of sarcastic language and is intended to make its victim the butt of contempt or ridicule.
The use of sarcasm. See Synonyms at wit1.
B) Since its obviously sarcastic, one would obviously *not* do whatever it said to do. Thus being constructive (i.e. dont grep in void context. however, lots of monks do. bad monkies)