From: Xeno Campanoli Date: 2010-02-13T10:16:38+09:00 Subject: What is the best exception to use for bad Data State? I don't want to use "ArgumentError" as this is a matter of data that may be programmed in a daughter class, and is not necessarily an argument. Specifically, the state of some object variables in this case. -- "It's the preponderance, stupid!" - Professor Stephen Schneider, IPCC member