Little Johnny wanted to but some rubbers,Walks into a drug store and see a women behind the counter. Walks on over all embarrassed,face red. Lady said "what can I help you with?"
Johnny said " I need some rubbers" . What size ? She said. Size??? I don't know...
She said "you see that fence out back with the knot holes" stick your penis in a hole and come back and let me know which fits best.
Johnny comes back a half hour later and the women said " well what will it be ??"
Johnny said " forget about those rubbers, I'll take 10 feet of that fence".