Quite a few if you include what happens after a division by zero without proper checking / clamping. Had one the other day when renormalising a Cumulative dist

Quite a few if you include what happens after a division by zero without proper checking / clamping. Had one the other day when renormalising a Cumulative distribution function wasn't taking into account a possible empty set, and the lookup of the index was invalid due to the division by zero.