"George Patterson" wrote in message
...

No, the flying is incidental to the job, which is teaching.


What is it that they're teaching?



As a PPSEL employed
at one time as a systems engineer, I could draw my salary while flying to
a
meeting I had to attend. My employer could even pay the entire cost of the
flight. The CFI is doing exactly the same thing.


Doesn't seem to be exactly the same thing to me. You weren't performing
your job while flying, but a flight instructor certainly is.