Maybe our DS's were seperated at birth!? I would be shocked if our DS doesn't do something math-y too when it comes down to it. And of course, whatever he wants is totally fine, but it's definitely in his blood. He obsesses over anything technology based. Both DH and I were software engineers at the same company when we met. Something about DS and DH looks very engineer-y. In the cutest way possible of course. smile My DH (yes, DH) got a lego mindstorms for his birthday last year, and now the "boys" fight over it. DS cannot wait to get his hands on it.