What's great about CF is that you can RP anything if there's logic behind it. And by anything I mean ANYTHING. If you take your time and browse through PBFs there're so many examples to this that I wonder why people still ask questions like "can I RP that?". The generic answer is "if it makes sense - yes you can, if it doesn't make sense but there's a great flavour about it - high chances are that you still can, but perhaps in a slightly unexpected manner".