Conversation between my wife and me in our car...

Wife: Look at that! Is it a cat or a dog?
Me: What!? Obviously, it’s a dog!
W: Are you sure? I guess it’s a cat...
M: What are you talking about? It can’t be a cat. Definitely, it’s a dog!
W: Positive? Think so? Hmm… I wonder…
—the argument goes on for seconds—
M: Wait a minute! (I notice there are actually TWO animals in the scene: one on either side of the road.)
M: You mean the one on the left side? (It’s a gigantic ‘dog-sized’ cat ‘on the leash’!)
W: Yeah! And you are referring to the one on the right? (It’s a very small ‘cat-sized’ dog barking furiously at the cat on the other side.)
M: Yep!!!
—We then cracked up at the unbelievable situation!—

Lessons:
1. Look at things with an open, non-biased mind: there ARE in the world ‘dog-sized’ cats ‘on the leash’ and ‘cat-sized’ dogs that bark at a ‘dog-sized’ cat.
2. Carry on a discussion on the same assumptions.
3. 夫婦喧嘩は犬も食わない。