One of my last clients used scrum (I was a contractor). The boss ran a fortune 500 company during the day and decided to take everything she learned to run her own small 20-person company.

Our standups lasted minimum 1 hour every day. Every Thursday we had a show-and-tell meeting, which meant going through everything we worked on and fixed (some of these meetings lasted 3 hours) and we also had a pre-planning and post-planning scrum meeting, each lasting 3 hours.

At one point I was charging the company more for meetings than actual work (it was 70/30 meetings to work).

I finally left when we added another 1-hour meeting on Fridays where we would just tell a joke, funny story, or something about our life. Since the majority of other contractors/developers on the team were from other countries (and didn't speak English very well), it was one of the most awkward situations I've ever encountered at work.