Territory Wars

So just to make this clear, I do not own a cat. Barry just likes our garden. But today as we were having dinner (The Mother and Father-In Law had joined us too) another tom cat arrived to annoy Barry. He is only a young cat but he is full of confidence and was teasing Barry. Barry is not aggressive in the slightest and just looked a bit miffed. I hope that this little cat doesn't upset him too much.