This is my shoe that I was innocently putting on.
Notice the black abyss.
So lazy me decided to walk about 10 steps hoping the insole would right itself.
But it wasn't correcting itself. So I took my shoe off and reached my fingers into the black abyss to untwist the insole-leaf-rock something...
That's when my shoe started to make hissing sounds.
Or rather the occupant of my shoe started making hissing sounds.