I doubt the fall is responsible for the change in behavior. Bluffing is just the Hoggie way. My Hoggie used to hiss all the time, now she mostly just hisses at her food. If she hisses at me, I lay my hand flat below her head level, and she's normally quick to come over and climb on my hand. Then I just scoop her up and she's just fine. If she does it to food, I just avoid swinging it around and hold it still till she grabs it. You might even find just putting it down and leaving it works too.
Double check for injuries, especially kinks that might mean something bad happened in the fall. I doubt that's the reason behind his sudden mood swings though!
Reply With Quote