I have literally sat under my desk on a telephone call because the team that sit next to me were making so much noise, think they were getting excited over the previous nights Great British Bake off or something. One of my employers office buildings is also 100% hot desk with unbookable meeting rooms, the marketing types love it but it's really depressing watching all the technical people walking round with arm fulls of books looking for a quiet corner every morning. I tend to work from home 2 days a week now just so I can get a solid 2*8 hours of work in every week.