According to the good folk at Passion for Christ a quick hand shandy is definitely a sin - and they can prove it. Possibly using an Etch-a-Sketch or some crazy shit, I don't know.
And if you need even more encouragement, check out ya girl Dameco's latest blog entry, in which she fearlessly testifies to her struggle and victory over masturbation!
It damn well better be a graphically described heavily illustrated struggle. With any luck the final victory only arrives when her friend Shanice turns up ... gotta love those goody goody chicks.