Toothbrush

When I was getting my bike fixed I picked up a brush to keep my new cassette clean and so extend it's life. (Hopefully I'll get more than 1000 miles out of this one.) This particular brush had an interesting warning:

"Not recommended for oral use."

My first thought was what sort of moron would use a brush like this to clean their teeth? Of course, I know all to well what sort of morons there are out in the world that, yes, call something a toothbrush and some pinhead will use it to brush the teeth in their mouth.