Suggestion: mute/change the kittys collision sound?

[Tad Carlucci]

The default sound is determined by the Material. Since most people don't bother with this, they leave it with the default of "Wood". Material does a few other things for moving physical objects (like the ball the cats play with) such as change the mass.

I've never used llCollisionSound, so I don't know from personal experience if it does what's expected; but there are no Jira issues on it as there are on llCollisionSprite (which simply does not work), so it seems reasonable to presume it does what it claims to do: set the collision sound.