I did two interviews with a company and then they called me back and wanted a third interview. I told them to forget it. If they couldn’t make up their mind by the second interview, then they didn’t have a clue.
The few times that has happened, I simply say, "I'm a team player, but I don't work 60 hours a week for 40 hours of pay." I get up, thank them for their time, and leave, knowing I'm not a good fit for this company.