If everyone starts asking for permission, i bet they would get real sick of it pretty quick.
So, if a doctor takes your appendicts out and something goes very wrong, Do you sue the doctor or the guy that wrote the text book on how to perform an appendectomy?
Sheer and udder stupidity.
I know. Victorian quilts slapped my hand for offering to send someone a copy of a quilt pattern from a 1988 magazine.. So does that mean it's illegal to share your magazines with a friend? I guess I better put them under lock and key.