Christmas, a time of giving and putting aside one's differences.
Sometimes a festively wrapped chew bone can make up for a cat eating the kids' cereal then bringing up the semi chewed remains in the dog bed. Then there was the time the cat pulled all the knitting out of the basket and draped it strategically about the dog as he slept knowing nothing of the affair until woken with someone shouting, 'the dog's ruined granny's christmas scarf!'
Generally a whole year of disdain and trickery melts away when that little present is handed over.
Christmas can soften even the most stubborn feline heart...until next year of course!