Thoughts on the SPECIAL system.
While some of the stuff seems weird from a standard RPG standpoint, it actually kind of makes sense. It's just that it's all arse-about-face.
Why does high charisma make you more resistant to drug addiction? Well, ummm, it doesn't.
It's more-so that highly charismatic people tend not to be known as addicts. Or at least appear not to be (even if they use shitloads of drugs and booze on a regular basis). Even excusing some Hollywood horror stories, until you knew the truth, you never would have known they were crack-heads. Thus high charisma=anti-addiction.
Perception for stealing? Again, arse-about-face. If you are stealing all this stuff, you must be a friggen ninja, seeing all around you and knowing your perfect time to purloin. And not only that, you must be more perceptive than those you're stealing from, because they didn't see you or catch you. So perception=stealing.
Strength for weapon making? When you think of a soldier with a double barrel shotgun, and a chainsaw attached to it, and a grenade-launching-minigun bolted on underneath, you tend to think of a big, burly son-of-a-bitch wielding it. Not some sciencey bloke who would actually probably make that sort of stuff, but some huge sod with a hammer and a welder and a grin and a firepower fetish. So, strength=weapon building.
I think that's as close as I can come to figuring out why some skills in the SPECIAL system got placed where they are. It's all about stereotypes, not really the attribute itself. What kind of person has/does that sort of stuff, and gets away with it/looks cool while doing it?
Can you do three lines, drink the bar dry, and still look awesome? That's charisma. They know you'll do it again tomorrow too. But it's because you're a legend, not a drug-addicted booze hound.