@lyse I actually decided to clean it after my mouse clicks became weirdly unresponsive.

As I began to pull dust out of the gap in the scroll wheel, a mysteryous red fluffy hair ball came out for some reason, so I decided to open it to clean the rest.

After I was done, I went and cleaned the keyboard too.

The mouse was but a teaser of the gore scenes I was about to see... 😱