[djf]

I’d end up angering myself if I said “I could care less!”.

[ApplegateRanch]

I could care less, too; but, it's too much work to force my self to an imaginary state of negative caring.

I*√-1 = -|I²| where I = 1/∞ level of caring.

It is extremely hard to achieve that level of negative caring; indeed, it is imposible for most people, without special training in meta-emotive techniques.

It is much easier to merely maintain a state of ordinary state of inability of not being able to care less, even though it is theoretically possible to do so.