A lot of people call Fun Ghoul feral or a wild animal because of how he acts and speaks. There’s just something off about him and you can tell right away.
He lived by himself in the desert for years before he met the rest of The Four and because of this he is a little wild. And for a period of time he very much was feral. That changed of course when the rest of The Four took him in. He can almost pass as normal now, or as normal as other rebels anyway.
But people still call him feral, say he’s wild. Those people don’t know how close they are to the truth. It started in Ghoul’s first few months in the desert. Those times were hard and he was very young, and, most importantly, alone. He had to learn to fend for himself very quickly and because of that, his natural... ability began to manifest itself.
He spent his first month in the desert as a coyote. Scavenging and sleeping away most of the brutal daytime heat. It was the only way he knew to survive at the time.
You’ll sometimes see The Four traveling with a lizard or other small reptile. The kind of reptile changes on occasion but it always sits on the Girl’s shoulder. And it’ll bite you if you try and pet it. Sometimes there’s a bird. Or a spider.
No one’s pieced together that the "pet” is only there when Ghoul is nowhere to be found. The Four fight to keep it that way. But Ghoul’s ability really comes in handy when they need the element of surprise.