Challenge Insane Mirror Acrostic

I’ve never written an acrostic,
merely thought while lying in the bath,
and later lounging at the spa,
“Good grief, such a poem should be casual;
indeed, not classical nor musical,
never any rhyming verse that would be
inclined to tease my mind or pen,
no in-line wrestling or word-erasing:
give me simple lines that might please.”