Check this guy's pet Hyena's laugh: YouTube Video. Seriously, aside from its laughter, check out its TEETH! No wonder Gygax gave them 2d4 Damage in their bite, in 1e AD&D! YIKES!!!
I have no idea how he got a Hyena as a pet. I don't think I could ever trust such a "pet" in my house, my life, or my car! I do love its laughter, however. No wonder I have such an affection for 7-foot tall Gnolls…
You know, if I ran into a pack of Gnolls, I think I could get them all laughing -- I bet they would invite me to join them for supper.
"Great! What are we having?…""Guys, why is that funny?"
"Guys?"
"Why are you doubling over with laughter -- it wasn't THAT funny. Was it?…"
And so the story of, "Slag meets a pack of Gnolls", comes to a grisly end.
Remember: if the Gnolls don't find you useful, they will find you tasty… Cheers!