So, your brother has been there for 10 years, is in good standing, presumably likes his job and does well there.
Is asked to sign a non-compete agreement, and now has decided to risk his livelihood by not signing it? Seems a bit extreme to me as he was not intending on leaving beforehand.
I get it. About 15 years ago I asked for and was given a rather large promotion and pay raise at my job at the time. The owner of the company drafted up a non-compete for me to sign before giving me the position and pay rate. I was mad
at the time, but slept on it, had an attorney look it over. Basically I was told this was fairly standard as I was climbing up the corporate ladder and I should just ask for a geographic limit placed on it, which I did and they added it and I signed.
As an employee I took it as my bosses not trusting me. But at the end of the day, they were just covering their asses too. And realistically what were they going to get if they sued me? Unless I did something malicious or stole trade secrets, etc... which I wouldn't have really done anyway.
I actually did end up leaving that position in less than a year for greener pastures, but left on good terms, the NCA was a total non-issue.
I'm definitely not a lawyer, I just don't think the boss here is going to go out of his way to sue every ex employee that signs this and tries to prevent them from getting a job elsewhere. Would become too expensive, and probably will get no satisfaction out of the verdict.
Boss was obviously burned up by a sales person stealing clients, wouldn't you be if you were in his position? Maybe acting after the fact was a bit tactless, but I was working there and saw business being pried away from the company I worked at, it would burn me up a bit too. This is his livelihood, no?
Of course, if he was already looking to move on, this is all moot - just not the way I read the post.