>> *Clearly* you've done this a great many times before. ;-)
> 
> Just one of the tricks of the trade ;)

Any which trade would that be then?

> Another one is, we have heat receptors just below the lower lip that can
> distinguish temperature differences better than our fingertips. Putting
> components (close to) there can sometimes tell you if one is overheating.

Heh. I've got a laptop which I *think* might have overheated. But can I 
find a reading for the core temperature?? What do *you* think? :-P

> In a similar vein, if you are in a building that is on fire (maybe you are
> trying to rescue your mother's electric drill or you favourite Haskell book) and
> your earlobes start to tingle. Then it is really time to get out.

Yeah. Because the building on fire would merely be a mild suggestion. :-D

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