Footprints on my Mind

Thinking I'd write something humorous
I sat down at the computer
as fun thoughts ran through my brain
leaving muddy footprint all over the place
now instead of using pen and ink (or typing for that matter)
I'm spending all my time
scrubbing out my mind
and does anyone know
how to get stains out of brains?
my mother once washed my mouth with soap
to clean my mind her fervent hope
to no avail she miserably failed
but not for lack of trying
Sunday school was no less horrifying
that left the poor sisters crying
for a black sheep I am
refusing to be shorn
leaving my mother forlorn
but she loved me anyway
as she sent me out to play
cleaning up the dirt on the outside
but there was nothing she could do
about the muddy footprints in my mind