<br /> So, your two cats aren't getting along? According to LifeHacker, there's a simple fix for that.<br />Scratch them each affectionately under the chin with the same hand, repeatedly.<br />This will mix their pheromones together. Eventually, they’ll think they’re from the same pack and share pheromones themselves.<br />They'll do that through that chin-rubbing behavior cats engage in. <br />