At banks I worked at, they did it once a year, HARD. Lots of loss of morale for two weeks after that...after which things stabilized again. During crises, it h

At banks I worked at, they did it once a year, HARD. Lots of loss of morale for two weeks after that...after which things stabilized again. During crises, it hit in waves. That was another kind of drawn out hell: people wondering "am I next?" aren't terribly productive.