If I did an early morning one pass straight razor shave in the morning and have an evening event where I really want to look and feel fresh, I will do another one pass shave and have done so on a half a dozen or so occasions in the past 7 years.
I've done it twice, once when I wanted to try a new blade, and once when I wanted to try a new razor. Regretted it both times, just too much for my skin to handle.
The only time I might shave twice in any given day is if I'm going to a special social event with friends. This would include a formal or semi-formal event that may involve wearing a shirt & tie. Normally shaving once each morning keeps me satisfied otherwise.