In the last podcast D&C discuss the question of why smokey couldn't go over the sonic fence. Here is some of what they said.

The sonic barrier was designed to repel smokey.
Even things that are smart have weaknesses.
Can it get vertical and detatch itself from the ground?

So it seems they are at least eluding to the fact that it has some intelligence. You be the judge, but after listening to the podcast I got the impression that D&C were saying that smokey just cant get over the fence. It was designed to keep smokey out and it works.

I still think it is lame.

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Doctor playing golf. Woo, boy howdy, now I've heard everything. What's next, cop eating a donut?