–it is about as filthy as using another person’s tooth-brush.

–it is a filthy habit.

at least once a day, as filthy feet are frequently the cause of an offensive breath; besides, water applied to the soles of the feet is the best nervous tonic.

on the floor of a car–it is an evidence of a filthy nature.

–use a tooth brush at least twice a day–a little tooth powder now and then will remove the tartar.