Of course if the Hr director turned states evidence they might be let off with a slap on the wrist.
Technically, you can find "temporary" job in smaller company and then move to the company you "really" want to work in. It just seem to me somewhat jerk move toward that smaller company.
I know of at least one person who had to quit her job... wait 2 weeks... then HP picked her up. Risky indeed if HP couldn't make good on their promise, but it worked that time.
In 1999, Major League Umpires Association (MLUA) were not able to legally go strike so they opted to use mass resignation as their negotiation strategy. It backfired, cost 22 umpires their careers and led to decertification of the union.
http://en.wikipedia.org/wiki/1999_Major_League_Umpires_Assoc...
BA Cabin staff I believe did this in the UK
He quietly put out the word,pretty quickly got approached by a hiring manager at another company - things were going swimmingly.
Then the Hiring manager put in the Req to HR - a V.P. called him personally and but confirmed this "no poaching" B.S. The wage hike would have been considerable for my friend (you can guess the two companies - Arrogant vs Top Payer) & he was pretty upset to learn that the real reason was Jobs being a Huge Asshole and bullying everybody into such a blatantly illegal pact.
So this is a very real "wage theft" collusion case. Unfortunately most of the parties involved had the "good" sense to NOT document it officially so the Smoking Gun might be hard to prove conclusively.
There was even a "no hire" list at one of these companies tacked on the wall of a HR Manager with the Caption "If you hire from there, we will fire (u) from here."