They fuck you up, your mum and dad. Every year I undergo a crisis around holiday season: I don't know which fucking day Christmas is. I know that it's the 25th, but I always have this creeping doubt that it's the day after thanks to something my goddamn parents did when I was a kid. They told me and my brother that Christmas was the day after so they could get a sleep-in. We still got our presents on the 25th, just later in the day than normal. But I remember having a loud argument with a teacher about the true date of Christmas, insisting Christ was born on the 26th. I had a problem with keeping my voice down when I was a kid.
These days I just go with the flow.