You don't have to wait long for a smirk from Dean or a pout from Sammy.
I think while watching Supernatural we do learn a lot..so, here's a list of things our favorite show had thought us:
1. The correct response to bitch! is always jerk!. 2. Say no chick flick moments when you want to avoid mushy conversation. 3. If you're in a car accident, don't worry about those embarrassing open-back hospital clothes, because if you're incredibly attractive (like Dean) they just give you nice tight white shirts and blue trousers. 4. Every house should own a huge salt cellar. 5. Always keep a paper clip at hand just in case you happen to need one. 6. Pay close attention to your Latin...
John Winchester, is pretty much like Dumbledore in this fandom. His curse was that he understood too much. he was too wise, too broken and too strong.
Everyone keep saying that John was a bad father because he introduced his sons into this life. but guess what?! he didn't! he didn't introduced them to this life, they were already a part of this life. They were meant to be.
As that Cupid said, It was a big deal getting Mary and John to fall in love so that Sam and Dean are born to be Lucifer and Micheal's vessels to fulfill destiny of this world, the apocalypse, God's plan.