[Wolves] Knowing where to tap

[Andrew Lewis]

2009/7/30 Adam Sweet <adam at adamsweet.org>:
> This was the story I butchered last night while telling it to Ron and
> Dave M:
>
>
> A mainframe computer on which everyone in the office depended suddenly
> went down.
>
> They tried everything but it still wouldn't work. Finally they decided
> to call in a high-powered computer consultant.
>
> He arrived, looked at the computer, took out a small hammer and tapped
> it on the side. Instantly the computer leapt back to life. Two days
> later the office manager received a bill from the consultant for $1,000.
>
> Immediately he called the consultant and exclaimed, "One thousand
> dollars for fixing that computer?! You were only here five minutes! I
> want the bill itemized!"
>
> The next day the new bill arrived. It read,
>
> Tapping computer with hammer:  $1
> Knowing where to tap:  $999

I've heard a similar thing:
Amateur: Knows it needs tapping
Professional: Knows where to tap it
Expert: Knows WHY you have to tap it there