Interestingly enough I've been in exactly the opposite position. The management wanted really rigid working hours but me and a colleague managed to negotiate al

Interestingly enough I've been in exactly the opposite position. The management wanted really rigid working hours but me and a colleague managed to negotiate almost full flexibility because I have a chronic sleep condition and he was dealing with family issues including having to take a child to medical appointments at all hours of the day. Weirdly, we seemed to do almost all the work despite our weird schedules - in fact, I found it incredible just how unproductive developers and engineers with 20 years experience could be despite putting a very solid 9am to 5:30pm, five days a week. The one constant is that supervisors and some co-workers were often annoyed because we weren't on hand to talk to people interrupting our work with questions that 9/10 times could have been easily answered in a quick email or message (and often that we would have been able to answer even when we weren't in the office). Either that, or technicians would be annoyed how long they'd waited for me to come in so I could fix a "software problem" for them in a system being built in the factory - which I would usually end up tracking down to being a faulty cable or a problem with a manufacturing process - all things that was their job to find and fix and that they were qualified to diagnose!