Um, hate to break this to you but there is no Santa. We tell our kid that people like to pretend Santa exists but that really it's the parents that buy the presents. We don't do any of that "look what Santa bought you" stuff. I can't really understand why we should want to hide the generosity of others in such a way.I do say, "because I said so" and do try to backtrack when there's time and go over why - sometimes you simply need to get moving and don't have time for the questions no matter how hard you try. So far (he's 4) I've found nuclear fusion and electromagnetism to be the hardest questions to bring down to his level - but we did well on how coal fired power stations worked the other day once he got over the coal being burnt and the steam not going into the generator, Richard Scarry is awesome!Questions like "how does he [the baby] get out" were hard only because my wife didn't want him prodding and inspecting her to see if he could look inside and see the baby. So we kept the details thin "there's a space called the birth canal; he comes out at the hospital".OK, I'm going way OT here ... have I told you about the time I bruised my hand so badly I couldn't write for 2 weeks and had to take notes left handed?