My current company ambushed me with a full interview panel, Gilligan's Island style, when a former coworker invited me to come in for a 3 hour tour. I took it in stride and had fun, and it gave me some additional leverage while negotiating compensation. I remember writing an architecture doc and unit tests when they asked me to code something in an hour and a half. I've been there 6 years and it's been most rewarding for me and my family.
My first job out of school was a solid 8 hours of interviews, and I had a lot of fun during that interview too. I got to work on space ships, and in time made a fortune in equity. I remember preparing a presentation slide deck completely in valid C++ syntax. I also remember taking a red-eye after that interview for another 8 hours of interviews at another company, which I also enjoyed despite having only had 4 hours of sleep.
The 2nd company I worked for decided last minute to interview me for two different roles. That was like 11 hours of interviews. I actually ended up taking the 2nd role because it was a significantly better fit. I brought a large cast iron skillet to that interview, which was a nice ice breaker.
It's true that I put up with a lot of frustrating tasks without complaining, but I personally have zero tolerance for BS. It turns out that the more I push back on BS within an organization, the more I tend to get paid, so in that sense I suppose I am expensive!