Unfortunately, it has become common for programs to give messages such 
as "an unexpected error has occurred. Sorry."

[BTW, WTF is an *expected* error anyway??]

When I was at college, this would _never_ do. Programs are expected to 
"fail gracefully" - and they are expected to provide *meaningful* error 
condition descriptions. Any program that didn't would be harshly 
down-marked. The people at that college may not have known anything 
about Pascal, but they knew about program design! o_O

-- 
http://blog.orphi.me.uk/
http://www.zazzle.com/MathematicalOrchid*

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