He got hacked off.
He couldn't hack it anymore.
He wanted to avoid being axed to leave.
He couldn't cut it anymore.
He wanted to fly a chopper rather than swing one.
He was too stumped to...
I would say being a barista at Starbucks. The pressure is tremendous in getting the right cup of coffee to hundreds of customers daily who will tell you the coffee is not up to their standards in a...