These pictures don't do it justice, but my knee looks like someone took a large blunt object to it.
I fell backwards while carrying the laundry on my back. And while wearing Isaac. And carrying Margaret. And trying to unlock the gate and then subsequently use my weight to pull the door open by the key. And then I lost my balance, fell backwards, and fell onto my knee and wrist.
The kids cried because they were scared by it, but I looked them over and the only blood spilt was my own and I took enough bruises for all of us.
I think the lesson is not to do my laundry anymore. It might have had something to do with the extra 70 pounds I was carrying as well.