[Neus]

Oh, it was observed really while I was dungeoning with a Bonder/Demon Hunter with a venus badge, who would charge, move, then roundtrip a monster towards them with a wrench, reaver wasn't exactly needed since Wrench is an axe.

I can probably obtain a venus badge later and test briefly if this is at all relevant to how this bug works.

While you were dungeoning, so in other words, monsters. Reread the quoted text in the OP.