I actually quite like that you can request that an NPC assume any position, even if you lack the equipment and just go through the motions. You can offer those ineffective positions to NPCs too, but they don't accept if they don't have the right bits. I wouldn't mind if that was possible too. Maybe put the ineffective positions under a sub menu to make it clear that they don't "work", but can still be used.
Another thing is that if one NPC offers themselves to another NPC, you can press E to steal them for yourself. This is kinda funny, but probably shouldn't be allowed.