It sounds like a midlife I don't want to get old thing to me. Grandma, winter, night, white fur.. That's my opinion
He was in the middle- middle of life. Black being young, white being old. Accelerator being youth, break being old age. He was laughing because maybe you're afraid? Don't want to age? Which is normal. But it's inevitable. Once he sprayed you, you couldn't go back to being unsprayed/unstinky it was a finality.
Well that's the leading theory with dream interpretation, that it's messages from the subconscious. No probs. I enjoy interpreting :)
Let me guess? Gypsy death curse? Bad omens? General doom theme?