Fucks to give

Is there a unit of measurement for fucks to give?
The gandhi? The motherteresa? The marthinlutherking?
Or is it named after someone else who gave a fuck?
Such as Jesus. He gave a fuck about a lot of things.
I think that the unit is actually the shit.
Because people already give a shit about things.
Or run out of shits to give.
What’s the conversion rate between fucks and shits?
What about damns? (We know that darns are equivalent to one damn, right?)
The truth is, I don’t really care.
I ran out of shits to give long ago.