Interviewer was surprised I wanted the job. Kept referring to the company with expletives. Tried to warn me from joining the company several times, and intimated I might get stabbed in the back. After they extended the job offer, they came back with three different tests to demonstrate I knew basic MS Office applications, each time extending my start date. Staffing agency had to argue with interviewer to let me actually start, since they signed the paperwork before getting cold feet.