We don't know who was the most fortunate here. Snookums took a notion to ride Scooter, so she jumped from the ground, put her claws into the horse blanket, and climbed on.
Scooter was fortunate for having a blanket.
Snookums was fortunate he had a blanket or the claws would have landed in the horse.
I was fortunate Scooter had a blanket and the claws didn't land in his hide or he would have jumped right on top of me.
We were all equally fortunate.