how come you can not see your skin on the floor when you fall over?

Question: how come you can not see your skin on the floor when you fall over?
- Keywords:
  fall over,
  skin
Asked by bubbles to Hussain on 14 Nov 2015.
- Hussain Jaffery answered on 14 Nov 2015:
  
  I’m not sure if I understand the question correctly, forgive me. Do you mean all of the skin that we’ve shed over time onto the floor? If so that’s because as we shed our dead skin cells, they flake off in tiny dusty pieces that are hard to see and accumulate on the ground. Different kinds of bacteria can quickly start decomposing skin. Usually when you vacuum and clean up, much of this skin dust is taken care of.

Question: how come you can not see your skin on the floor when you fall over?