JobDig chairman G.L. Hoffman's blog post on 100 lessons for entrepreneurs (blogs.jobdig.com/wwds) was recently Twittered by start-up guru Guy Kawasaki. Here is lesson No. 70:

"Never hire a quitter back. People will leave your company, chances are. No one is irreplaceable, it happens. But if they resign, do not hire them back into the company. It is very, very tempting to do so'�after all, you are a great person, and they made a mistake (they will tell you) in resigning, what have you. If you do, you have just signaled that your company has a safety net, and more people will leave to test the employment waters. Let it be known if they leave, that is ok, but they are not on the team now or in the future."