Plain Facts for Old and Young by John Harvey Kellogg

12. _Bashfulness_ is not infrequently dependent upon this cause. It

would be far from right to say that every person who is excessively modest or timid is a masturbator; but there is a certain timorousness which seems to arise from a sense of shame or fear of discovery that many victims of this vice exhibit, and which may be distinguished from natural modesty by a little experience. One very common mode of manifestation of this timidity is the inability to look a superior, or any person who is esteemed pure, in the eye. If spoken to, instead of looking directly at the person to whom he addresses an answer, the masturbator looks to one side, or lets his eyes fall upon the ground, seemingly conscious that the eye is a wonderful tell-tale of the secrets of the mind.