What happened within hours of Trav leaving for a week

Jonah ran into his room, the rug slipped out from under him, and he landed with his nose on the frame of his bed. I walked in to find him on his stomache with his back arched and his face on the frame of his bed. He bled out both nostrils, his nose swelled up big, all I could think about was "why now when I'm by myself?" It didn't look crooked, his pupils were responding to light properly so we waited it out at home. He just has some nasty scabs and bruising and a great story to tell every time someone asks, which Jonah loves.