When I was in S. Korea, 7 years ago, I was told..."boy, what ever you do, please, don't touch your student on the head" and I said, O.K. but why? and they said, "...'cause your students might be Buddhaist...", and I said O.K. but, sooooooooooooo, and they said, "...well, ...if they are, if you touch the top of their (my students) heads you could disturb their ancestor's spirits and you don't want to do that, trust me...", and so, I never did!...now I am not paticularly religious, but I must admit I could alway pickout my buddha worshiping students, truely, and frankly, a bit amazing, ....because they alway had a slight smile on their faces, kinda like that Italian Madona picture, if you know what I mean....they always looked a bit contented, happy!, truely. Oh, not Madona da Mona Lisa picture. Yeah! Da one! Bye.