Mike Isaac’s Super Pumped (p. 171) reports physical and verbal abuse by Uber managers:
One manager in Rio would scream or throw coffee mugs at subordinates when he was upset. Workers were threatened by managers with baseball bats if they didn’t meet targets. Once, this manager berated an employee about his performance so intensely, he made the man cry in front of the entire office. … Yet because Rio de Janeiro was one of Uber’s top performing markets, the numerous HR complaints about that manager went unresolved.