Two good REs here: a good NaN errors and a fun pirate bay link.
I can see why people might think this is a good idea. I can see why it would not be.
This would have been really useful at DebConf a few years ago when we were looking for a new pump for a pipe organ!
Seen most of them before. But they really are funny.
Nice example of the ? replacing the smart quotes.
Interesting take on the whole errors and values thing that I've been exploring over at Revealing Errors.