<prompt> Human: To make a long story short. I took a full time position in January at a company where I had been working PRN. The change came with a decrease in pay, but full time hours and benefits.I looked at my first pay stub after starting full time and noticed the change in pay rate, and havent really looked at my pay stubs since then.However, today I decided to take a look and noticed that starting with my second paycheck, my pay rate has been significantly higher than it is supposed to be. Like, higher than it was when I was a PRN employee. I think its likely that someone in payroll has made a mistake and either entered a wrong value, or mixed me up with someone else. So the question is. What should I do? Should I bring it to payrolls attention? Or should I just wait for it to come out in the wash, and let this free extra money ride for as long as it can?  <response>: Honestly... let this free extra money ride for as long as it can?Set it aside. Just keep your mouth shut and set it aside. If they discover it and ask for it back, you didnt notice and youre happy to return it. If they never notice and you get a new job... they probably never will. This happened to me once and it was for 10 of my total pay. I immediately let management know, had to repay a few hundred bucks, and was told that it would go down in the books when it came time for talking about promotionsraises. It never did. I could have let that ride for 2 years and then when I moved on took it with me without anyone ever figuring it out.You might think that telling them is going to make you look good, but it wont. Why? Because it is going to make someone else look bad. Just keep your mouth shut and set it aside so that its always there if you need to pay it back. That is the smartest fiscal decision. 