Observing an unhealthy object or procedure.

I have done just that.My best friend and I were in my husband's hometown and saw a sign for a restaurant under new management.Having been there before and not caring for it we thought we'd try it BUT upon being seated I recognized the same decor and same wait staff.Then the same 0wner was at the register.

Being disappointed prior to this I stood up and chose to walk out before even ordering.Got plenty of dirty looks from staff but just smiled and said "changed our minds".