Here is a script quote:
MEL: It's a fine product. Anyway, I saw you on the Tonight Show a couple of weeks ago. I was watching the show with my son, Donald. He's got this rare immune deficiency in his blood. Damnedest thing. Doctors say he has to live in a plastic bubble. Can you imagine that? A bubble.
Mel (the Bubble Boy's dad) and John Hayman (As the Bubble Boy) www.angelfire.com/sc/seinscripts/bubble.html