I have a cat and I have done a very scientfic study. Basically, the colors of the LS50 do NOT equate to a cat's butt. In addition, the sound coming out of a cat's butt no way is the same as the LS50's. I am sorry but the "smell test' says that the original poster is bias and his observations are mute. Those who care about sound should ignore this thread.
Although I have the LS-50's, I am LIPRA certified by S&V.