Tickled

  I really hope that's the last time I see this bearing

My hands are crippled and my back is ruined from doing this work in a gravel parking lot. But it's unavoidable and it's for a purpose that I understand and it was within my means. This is all part of the seemingly contradictory principle of simplicity which basically hoards all the complexity that normally would be spooned out to service workers.

What is round...

 I was spinning in circles trying to solve a riddle on my van.
What is round and has a hole in it but doesn't let oil through?