I worked at Apple in the late 90s, they wouldn't even tell me what I'd be doing during the extensive interview process. There was so much secrecy. After all the paperwork was signed, I met with the team (on a Saturday) and found out what it was and that I'd be working 7 days a week, 14 to 16 hours a day for the foreseeable future. I wasn't disappointed, but it was a really strange way to start a job.