As twisted as it may be, Cletus genuinely cares for the symbiote.
He also cares for Shriek and treats her fairly well, especially if you compare them to Joker's and Harley's relationship. He really got upset when Deadpool hurt her.
The Inverted Carnage smothering Apocalypse's Gene Bomb in AXIS.
Spider-Man: Okay, brains failed—brute force it is. Tear out wires. Tear out wires until it doesn't blow up—
Carnage: Now, I an't no sciencetition... but what I know about bombs, they don't respond well to force, kemosabe.
Spider-Man: Help me, Cletus—we'll web it up—smother the blast—
Carnage: No amount of webbing is gonna to stop that. Only thing that might hold it back—is me.
Spider-Man: Cletus—this will kill you.
Carnage: World's better off without me, can't argue that. No one in my family ever done anything for another person. Come from a long line of selfish dirtbags. Probably goin' back to caveman Kasady stealing pterodactyl eggs from the needy. You do me one favor, Spidey—'kay?
Carnage: You build a giant damned memorial in my honor, made out of gold an' jewels an' rhinestones, draped in the Confederate flag, right in the middle of bleedin' heart liberal New York City—an' I want it playin' Skynyrd's "Free Bird" around the clock!
Spider-Man: I promise, Cletus.
Carnage: *starts to sing "Free Bird" as he is engulfed by the explosion*
Moment of Awesome: His first fight with Venom and Spider-Man note in Venom's last appearance, Spider-Man couldn't beat him and had to fake his own death to get him to leave him alone. The duo tries to beat him by rushing him at the same time, and causally tosses them both through a wall.
Narm: Being a product of the 1990s, Carnage was once prone to being Totally Radical. He also looks like a frog on the cover of Deadpool vs. Carnage #3, and when he uses a tentacle to smack the Sin-Eater's shotgun in Axis: Carnage #3 the sound-effect produced is "Fap!"
Rescued from the Scrappy Heap: A lot of people who hated Carnage started liking Carnage retroactively when he was killed off by a new, even less likeable character called "The Sentry". There was much rejoicing when Carnage was brought back, if not for his return, then at least for the fact the Sentry had been done away with and a more worthy figure could not get the honor of killing Carnage.
Even detractors of Carnage see his Inverted self in AXIS one of the best things to come out of the event.
Any time the symbiote oozes out of Cletus's wounds.
Emil Gregg's rat and maggot-infested corpse in Axis: Carnage #2
Captain Obvious Aesop: Gosh, who knew that grown-ups can sometimes behave more childishly than their kids?
Visual Effects of Awesome: The moment where Nancy pukes over the table is superbly well-done, because Kate Winslet had to say her line "What lack of interest?" and then throw up in the same shot, which they did by having her conceal a small amount of fake puke in her mouth (so she could talk) and also run tubes up her body and jaw which could squirt out more fake puke, and then cover up the tubes using CGI.note In stage productions of the original play, this effect has been done by running tubes from an offstage "puke tank" into the on-set sofa, which the actress playing Nancy then attaches to a tube running up the inside of the sleeve of her costume. When she needs to puke, she palms the end of the tube in one hand and claps her hand to her mouth, then they run the pump and the puke appears to spray out her mouth and between her fingers. Polanski did essentially the same thing, but was able to do without the hand-over-the-mouth trick.