Considering that my sibs and I would call the domeheads buttheads when we were little without the insult connotations, that may be trickier to accomplish. Sometimes the head you're residing in has it's uses, and he's just amused at the attempt. It also helps that I've never seen Beavis and Butthead. The Stunticons are older, and the Sauricons keep insisting that they're three years old, but doesn't fit into the TF timeline and it's giving me grief. While I'm guessing they mean at the time of the old movie, I'm not certain. I think that most of the younger ones are all Autobots because people have a hard time seeing a child as inherently evil, as they keep referring to the Decepticons as. And I like Ear Wig, I'm keeping it even if I don't know where I'll use it yet.

Disbelief (yeah right, stop pulling our wires), hurt (because they're better than the Dinobots fraggit), and then anger (how DARE he). There's a little superior pride there too, since Grimlock made smart mechs to do a job he couldn't. *shrug* Honestly? They try to ignore that the Technobots exist. But since that never works, at least the knowledge as to who their creator is. And I'm under the impression that they don't know Grimlock was an undeniable genius at the time.

Handgun or cannon, both will kill you should they go off, one's just bigger. Well... since there are gun!bots in canon, seeing a mech or femme shouting at their weapon wouldn't be too unusual. And great for crack if someone left a decoy for their handler to find and shout at. Which, would actually make those instances where their gun is just a gun, and has always been a gun all the more laugh/facepalm worthy.