Knowledge: Any dye on a couch is impossible to get rid of while colored hair can be removed by bleaching.

Conversation:
I just dyed my hair burgandy, kind of regretting it
Oh wow!  Did you have it done  professionally by a hairdresser or did you do it yourself at home?
I did it at home and obviously did not think it through, Burgandy is not a natural hair color so it looks weird
Sounds unfortunate, although home coloring got 1.9 billion in the US back in 2011.
Why is there so much hair coloring sales anyway? I understand it to be for fashion since that's what I tried but other than that I don't get it.
Main reasons other than fashion would be hiding gray or white hair and restoring one's original hair color.
Ah true. So how can I remove my hair dye?

Response: Hmm, bleaching the hair can remove the colored hair.