5)Your teenager will insist on calling your toddler "Fitty Cent" . For a while it's cute (hell you even made jokes about it) but then you realize he's begun to tell everyone his name is Fitty Cent, which will cause you to have to launch in to an explanation of a story that typically has people horrified and wondering why you are making light of it.
4)Your toddler will overhear a jokingly sarcastic interaction between teenager and Dad in which teenager asks father to get something for her. Dad asks teenager what the magic word is and teenager says "Now" (rather than the expected "please"). Your toddler will save that in her memory bank for the next time she asks Dad to get her milk. But when your toddler does it she will put her own spin on it and scream "NOW".
3)Your teenager's obsession with WWE will have your toddlers running around shouting John Cena at the top of their lungs because teenager thinks it's funny and requests it all the time.
2)You will find yourself becoming a broken record continually repeating the phrase "Your little sister and brother look up to you, please set a good example for them". It will always fall on deaf ears. You'll sigh in frustration.
and the number one reason to limit your toddlers exposure to your teenagers
1) When you ask your toddler if he needs a jacket for the day so he doesn't get cold he'll respond "Dude,I'm fine with nothing"