On Tue, 6 Mar 2007 20:18:10 -0600, "Anthony Fremont"
Gave us:

In other words, dumbass, the reason that shunts are of low ohmic
value is so they do not modify the circuit you are attempting to
examine.

Stupid me, I thought they were for fire prevention.

Stupid you indeed. That's not what the INLINE fuse is for, dip****.
It is in the meter, but is there to limit the voltage presented to the
meter mechanism or when current is being shunted through the resistor.

The shunt has nothing to do with fire prevention. They are a
precision shunt meant to provide a precision voltage to a high
impedance volt meter such that it can provide the user with a reading
of the current in the circuit that it was placed into WITHOUT
modifying the operation of the circuit.

Your 1 M setup would NOT qualify for a device that does NOT modify
the circuity to a great degree. It would qualify as a device that so
badly modifies the circuit being tested that it no longer represents
the circuit that was originally given.