I'd never heard/seen/thought of this before, but, in one of my leagues, an owner successfully used waivers as a weapon against his opponent. Team A had Herbert on bye, and T. Lance stashed -- but he's ruled out. There are a bunch of byes this week, and most teams have 2 QBs on the roster. So, on Sat am, Team B went through each of the Free Agent QBs and added them -- then immediately dropped for the next one. For instance, added Garoppolo. Then dropped Garoppolo for Heinicke. Then dropped Heinicke for Winston .. etc. By dropping them, they converted from Free Agent status to Waivers ... and thus can't be picked up for 2 days (and since that crosses the game, really can't be picked up until Tues). So, Team B couldn't pick up any QBs that have any reasonable chance of playing, and were guaranteed a big fat 0 for the QB slot.