When I first started out and had permission to nap the kids upstairs, we were coming down from nap and I tripped over a dck
and fell down the last few stairs with my infant DD in my arms. Thankfully the gate was latched which broke the fall, and I bore the brunt of the fall hurting my arm. Thankfully none of the kids were hurt, but it made me think!
I also changed how we transisitoned from nap after that...