Trust is as difficult a coin to earn and it is easily lost - the trust built over a decade can be shattered in an instant by one offhanded remark or deed.
I once had an employee who was very careless-he made tons of typons on every page of the reports he wrote and also sometimes sent e-mails to the wrong people.
Maybe they're new and they made a mistake or they did something by accident or maybe you work with a really lazy, careless colleague and they just don't really care much about their job.
In an earlier episode, we illustrated a similar case with a careless teacher who refuses to give out points for each problem on a written exam and only announces whether we have failed or passed.
For if you were by my unkindness shaken As I by yours, you've pass'd a hell of time, And I, a tyrant, have no leisure taken To weigh how once I suffered in your crime.