Hi Dad. How was your day?

Every evening, when I wander through the door after a tiring day at work, the kids have this little set-play they go through.
Actually, it starts when they hear the jingle of keys at the door and my attempts at turning 2 handles with only one hand free.
You can hear the thunder of footsteps as Bart and Lisa run race each other to the door, accompanied by their excited chanting: Daddy! Daddy! Daddy!
As I enter the house, Bart used to jump up and down like a yo-yo too - until I told him that a 'Hi Dad!' would be enough. Lisa is more restrained, just standing in the foyer smiling sweetly. And Maggie calls out some excited babytalk from her high chair, sometimes followed by a wave.
This evening, things happened a bit differently.
Bart greeted me at the door, alone. And then I heard Lisa calling from the bathroom.
"Daddy! Daddy! Daddy!" THUD! Apparently, in all the excitement, she tripped over a crawling Maggie, and hit her head on the door frame.
That set the scene for a very difficult night with Lisa, as she remained quite upset all night.
And all because Daddy is hopeless at sneaking into his own house.