How to Win Every Argument: The Use and Abuse of Logic (2006)

Crumenam, argumentum ad 39

We are given two premises, that milk is white, and milk is not white.

If 'milk is white' is true, then it is also the case that 'Either milk is white

or the moon is made of green cheese' is true. (This is correct.) Since

we are also given that milk is not white, the second alternative must

be true, namely that 'the moon is made of green cheese'.

There is nothing wrong with the logic. The known falsity in the
contradictory premises can be used to establish anything,
including a rather smelly satellite.
It is difficult to use the fallacy of contradictory premises in
everyday argument, because your audience will normally see
that you are contradicting yourself. What you can do, however,
is to use contradictions which are normally accepted in loose
speech, and proceed to wrap them up in tight logic.

He's a real professional, but a bit of an amateur at times.

(It sounds acceptable enough, but remember that from it you can

literally prove that the moon is made of green cheese.)

Crumenam, argumentum ad

The argumentum ad crumenam assumes that money is a measure
of Tightness, and that those with money are more likely to be
correct. 'If you're so right, why ain't you rich?' is the common
form, but it translates poetically as the belief that 'truth is booty'.
There have been branches of Christianity which held that
worldly success could be taken as a mark of divine favour; and
there have been constitutions which loaded the franchise to the
advantage of those with wealth and property.

/ note that those earning in excess of £100,000 per year tend to agree

with me.