Don't mind him. Everyone's got their shit to deal with, and he's just an old fat guy. He's figured it out, and he might be gross, but he's not hurting anyone... Or, he can't, I guess. As a fat old man, he's not going to outrun or outstrong anybody unless they're a kid, and you can tell from the porn that he isn't a pedophile... Unless that girl looked kinda sketchy-aged and he was a Nmelssx all along.
I dunno, I just feel really bad for him.