That was me when I was younger!

Mornings were so miserable because my dad seemed to take personal offense at the fact that I didn't want to speak in the mornings and he'd almost always pick a fight with me. On the mornings he just left me alone, or if my mom was off work (she wouldn't let him bother me when she was around) I was perfectly fine keeping to myself and I'd be cheerful by the time I left the house.
My DS ended up getting that lovely morning personality from me, so I just don't speak to him unless it's necessary. My husband started going through a phase like my dad where it ticked him off that DS was so miserable in the mornings, but thankfully he wasn't as bad as my own father was.