mad aspirations

T: If I'm not an editor like Papa or a chef or a furniture carpenter or someone who plans how to make different vehicles or something like that, I'll probably be a mad scientist.
S: Oh no! My son would be maaaaad!
T: Insaaaaaaannne!! (pause) But, actually, I really might be a scientist with my own lab that I plan and build, with computers to check on all the equipment. And I'd have assistants - also scientists, I bet, but they would be in my lab so they'd have to follow my safety rules. And I would invent things, but I promise I will never test my inventions out on people.
S: How would you test your inventions?
T: Mmmm, probably on mailboxes.

So, watch out, unsuspecting mailboxes...