<prompt> Human: I quit a crappy although well-paying job on 22916. I started my new job on 3116. Today, on a normal payday for my old company, I received what used to be my usual paycheck.My guess is that this will continue until they find out.I know that in real life they are eventually going to find out. My immoral question is, until they figure it out, should I let the funds build up in a separate account accruing interest, helping me in the long run should it take them years to figure it out.When they ask for it back, are they going to want interest?Or should I just hand it over now?  <response>: Most companies do payroll a week or two behind. Its typical to receive one paycheck after you quit. Bank the money if you are nervous and contact them if it happens again as legally you are liable to notify them and responsible for the extra money. 