I also taught myself how to blow glass using a propane torch from the hardware store and managed to make some elementary chemistry plumbing such as tees and small glass bulbs.
You know, a lot of people are loath to go to an orchestral concert because they are intimidated by the thought.
Actors have bodyguards and entourages not because anybody wants to hurt them - who would want to hurt an actor? - but because they want to get recognized. God forbid someone doesn't recognize them.

