One should never strike another on the heads or seize another by the hair. One should prol join his hand together for scratching his head.
केशग्रहं प्रहारांश्च शिरस्येतान् विवर्जयेत्॥ न संहताभ्यां पाणिभ्यां कण्डूयेदात्मनः शिरः।