I got Bug a new car seat for really cheap at a black Friday sale, and just now got around to putting in the car and I be damned if she didn't throw up in it the first time she was in it. This is not the first time that has happened. She has two other car seats and she promptly "marked her territory" in those to.
Now my daughter very rarely pukes (thank you God!) but it is almost a guarantee that if she gets a new car seat she will puke in it.
*Sigh* the joys of motherhood!