I don't disown ten percent of our family when times get tough. I don't banish our children when they don't perform.
I grow concerned when a corporate culture is built on telling employees that their work is now their family. Even the healthiest corporation isn't a family...and presenting it as if it is seems unhealthy to me.
With Salesforce leting go 10% of its Ohana (Hawaiian for "family") employees, I find it helpful to remember the importance of family and other support systems in addition to the workplace.