One day a father and his son coming from supermarket, on the way coming they say two dog mating(sex)together. The boy ask his father" Boy: daddy see dogs they are climb each other and what is the one that climb other one doing to it? Farther: the one on top is given injection to other one because the one at down is not well it's sick (He doesn't want his son to understand about sex) Boy: ok am now understand because whenever you are not at home my mum is always sick ,and another man is now climb my mum and give her injection. Father: oh my god why your mum doing this to me? So she is cheating on me. Boy: dad why are you talking like this? After all my mum is sick according to your explanation,so if another man climb my mum I think is a doctor. Father: will you shot up what kind of foolish injection is that? The man you see climb you mum is doing my responsibility to your mum by having sex with her.