I'm not sure if this qualifies as a "hallucination".

I was in a great hurry, and I stopped at a red light. Suddenly I "saw" the light change to green, but the cars kept coming from the side. After blowing my horn and trying to get into traffic, I "gave up" to wait for the people who were "running ...

I'll dare to start this topic. Here's a short, one-page, description:

www.xenodochy.org/philosophy/consciousness.html