Then it was me. Splitting, no. Filtering, yes..but then again you know I'm an advocate. You know in crap weather like that, cagers never seem to be bothered by filtering.
Unfortunately, I've had several run-ins with insane drivers in pouring rain when I've filtered past them. It is like they go beyond just wanting to scare me, to outright trying to remove a couple limbs to "teach me to wait my turn".