catcher's interference?

[dpomeroy]

Discuss the same situation please with FED rules. The BRD
says the FED does not have what I've always been taught is
"weak interference", IE, the OBR rule of returning runners
to TOI and calling no one out. I'm thinking more of a play
I had this weekend where a catcher bobbled the pitch and
the batters backswing nearly hit the ball. If it had and the runners take off I'd be inclined to call "weak interference", return them and do nothing but Carl seems to
say in 262 in the 2004 BRD I should bang B1 out. I'm open
to advice and rule book support insight on this one. It
sure won't happen often but is damn interesting.