Probably die young, with a lot of gray hairs.
I'm betting Samurai can back me up on this theory, and so can Lady in Red, but I think this next little story will explain why:
Ladybug and I were hanging out at home--I was (gasp!) cleaning house. I found some tiny little cans of playdough left over from a stocking stuffer, and Ladybug asked me to open one.
I did, and sent her to the kitchen floor (where we play with playdough) and then ran something into the back of the house.
When I came back, she was sitting in front of her sister's bicycle pump, which she had hauled into the front room, surrounded by playdough crumbs.
She was shoving the playdough crumbs into the rubber hose of the bicycle pump, and then pumping the handle and watching the playdough pellets fly across the room-- "WHEEEEEEEEE!!!!!!! Look mommy--it goes high!!"
I, of course, laughed my ass off, and then called Mate at work to share the joy. When he was done laughing he had me put Ladybug on the phone--I didn't hear his side of the conversation, but I did hear her reply. "That's okay, dad. Mommy cleans it up."
*snork* Yup. Gray hairs and apoplexy--I bet it killed Einstein's mom, and probably Curie's and Eddison's too.