Here's something we found in Michael Lewis's excellent 'The Big Short'.
An observation allegedly made by ex-Deutsche Bank bond trader Greg Lippmann:
'They (firm executives) have four categories (for how staff will feel when given their bonus number): happy, satisfied, dissatisfied, disgusted. If they hit happy, they've screwed up - they never want you happy.
'On the other hand, they don't want you so disgusted you quit. The sweet spot is somewhere between dissatisfied and disgusted'.