Except when the bat moves into the ball. ;)
Bizarrely I did a Pong clone ages ago and it uses only one Collisions command (sphere to poly) for ball to bat collision and it works perfectly... I mean I've tested and tested it and can't make it fail. Yet when migrate the code to any other context, I start to see the normal OMG!-Two-Moving-Things!-Help-Me! Blitz problems with collisions not being caught - which is a shame as I was going to post it but there's no point now.