1. "Duty"if done with your wife
2. "Art"if done with your lover;
3. "Education"if done with a virgin;
4. "Tuition"if done with your teacher;
5. "Job"if done with your Secretary;
6. "Science"if done with a fertile lady;
7. "Business transaction",if done with a whore;
8. "Social work"if done with your neighbour;
9. "Charity"if done with a widow
10. "Sacrifice" if done with your own hand!!!!!!!