Now, sweetheart, you know Grandma wants to give you everything you ask for! But a set of double HP100's can be dangerous if you don't know how to use them. Your father would kill me if anything ever happened to you, so I think it's best that you use you singles until you get a little older. I know you don't understand now, but you'll thank me when you get older.
How about a class so I can learn to safely use them? Say one given by Bob Sherwood? he is a very good instructor

