Logically.....correct?

I just wanted to say Thank you so much to Anna, who designed my blog. isn't it lovely?

So a  random person walks up to you and this conversation happens.

Person: You should never step on a crack in the sidewalk. EVER.

You: Umm....why not? And who are you?

Person: Never mind who I am. Once I stepped on a crack on the sidewalk, and the next thing that happened was that a car ran into me.

You: But that doesn't tell me why not to step on a crack in the sidewalk. And who are you?

Person: Just ask any one of these people going by. They will all tell you that it is bad to step on a crack in the sidewalk.

You: Why?

Person: Because it is. the random person dashes off down the sidewalk.

Now was the random person making a logical argument? Comment and tell me what you think, and i'll tell the answer in another post.

So long!