My cousin was late to work on 9/11 and is alive today because of that as she worked in one of the towers that was hit. It was unusual for her to be late.
I also have a cousin who narrowly avoided being a casualty of 9/11. She had moved from NJ to CA the year earlier, still working with the stockmarket as a compliance officer. She had plans to come home the weekend before 9/11, for a friend’s wedding. She actually was booked on flight 93 (the one that crashed in PA), but a couple of weeks before her scheduled arrival in NJ, her old boss from NY called and asked her to stay on a few more days to help her out with a project, and in exchange for her help, she offered to pay her way round trip. Of course she accepted the offer, and gave up her seat on the illfated flight. She was safely in midtown when the attacks began.