Some background on this comic:

Transcript:

When I originally wrote this caption, it read (in part): “…the coconut-like sound of their heads hitting secretly delighted the bird.” That’s the way it was first published.

Then I got a letter from some fellow who suggested, in this case, the word “colliding” would be a better substitute for the word “hitting.”

This was quite strange to me. First of all, I had struggled with this caption and never felt comfortable with the final outcome. And secondly, he was right. “Colliding” was a much better word, giving the caption an improved rhythm. So I changed it.

To this day I still swear the only time I’ve heard a cat laugh, was one of my cats seeing the other run head first into a wall chasing a laser pointer. I distinctly heard her chuckle.

My edit:

Im sure I have seen this one in the past but I have a bird now so it has a new special feeling.

I read the bird’s line in Jeff Winger’s voice

All right, all right! That is my kind of pot bong!