Berserk Button: Don't steal from S'hawn, call Dealag a freak, or insult Ben's parents. EVER.
Cats Are Mean: Averted. S'hawn is actually a fairly nice guy... unless you make him mad, in which case he plays the trope straight.
Gratuitous Foreign Language: S'hawn, Bedivere, and Dealag all speak the common tongue, but each can also speak at least one other language. S'hawn speaks his native Khajiiti as well as the draconic Dovahzul, Ben can speak Bosmeris (the wood-elf language), and Dealag is natural-born Daedric speaker.
Lethal Chef: Played with. S'hawn can cook a delicious meal from any game he shoots or plants he finds in the dirt, but whenever he tries to actually make a potion, there's a very high chance of it exploding... somehow.
Try to Fit THAT on a Business Card!: S'hawn's full title is "The Last Dragonborn, Dragon of the North, Thane of Skyrim, Archmage of the College of Winterhold, Guildmaster of the Thieves' Guild, Nightingale, Harbinger of the Companions, Listener of the Dark