A cat does have a weird personality. You can say it is well-behaved, and sometimes it is. Light-hearted and careless, it may find a warm place and sleep soundly all day long. However, if it makes a decision to go out and play, then it might run away for a day and a night; however you call, it will not return. You can say it is playful, which is absolutely right. Otherwise it would have been back home long ago, wouldn’t it? However, when a cat hears any sound made by a mouse, it would turn quite responsible. Holding its breath in concentration for several hours, the cat would make up its mind to wait patiently until the mouse comes out.