Hi - I have 2 cats (Max and Milo, both about 10) and they've always been best friends - no fighting, they would play together and groom each other. Max has been in an e-collar for about 10 days and Milo has been staying away from him because of it. This morning Max (in the e-collar) tried to play/chase Milo and scared him. Now Milo is hissing/growling at Max whenever he comes near him (and Max isn't taking the hint to stay away). I tried taking the collar off and putting them together but Milo was still hissing at him. Any suggestions on how to keep the peace until the collar comes off for good? Right now I have them separated, but that can't continue. Will they ever be friends again? Please help!