I actually basically had this happen to me before, too. With two different employers. Aside from one of them being super annoying, over and over again, helping

I actually basically had this happen to me before, too. With two different employers. Aside from one of them being super annoying, over and over again, helping them out was the right thing to do. It's not like it cost me anything other than a couple of minutes of time. If someone already screwed you over, then... But otherwise, why not