<prompt> Human: Hey. I started working for a company about 3 weeks ago, and get paid hourly. Im getting paid for the first time today. A couple days ago I was able to see my paycheck through an online pay stub service, and noticed that they had reported I worked many more hours than I actually had worked. The paycheck is way larger than it should be. I was skeptical it would go through, but it did and now the money is in my account.Should I tell my employer about this mistake? I would obviously rather not but I feel as if they found out and I never told them I would be fired. Any advice is appreciated, thanks.  <response>: You should tell them about it. There is a chance that its not a mistake and that your first paycheck is larger than normal because its for three weeks instead of two like it probably normally is and so you had more hours on that check than you will on subsequent checks. First paychecks can be weird like that sometimes. But if it is a mistake, you do have to give them the money back so its better you tell them yourself now than that they notice later and demand it back after you may have spent it. 