Patience vs stupidity

There must be a fine line
between patience
and stupidity

and I suspect
I cross it
over and over
on a daily basis

Do not know
if I am either or

But when you think I've lost patience
and behave stupidly

you do not know
where my patience starts
nor when it really ends

but when it's been hurt
I raise my voice in pain

and I wonder again
if I'm patient
or stupid

or both

and who's worth what