I used to think this too when I first started, thought I was being very hospitable. Did they appreciate it? No. That's when the showers became longer, the amount of time taken to tie a shoelace was painful and a 30 min booking actually did end up to be 45-50 mins. My generosity got to the point where I had one client who would book an hour and ALWAYS stay 90 mins. Didnt matter what I would do, he always found a very pressing subject he just HAD to discuss with me. 3 years, once a week, extra 30 mins - dont even want to do the maths on that. Another time I had a client who pushed my boundaries in every sense under the pretence of being so attached and caring towards me (yes, I know you will be reading this now!) and I just couldn't find a polite way of telling him to stop it. I lost my shit one night when he overstayed by over 20 mins, despite me actually telling him he had to leave because I had to go somewhere. I missed my train home and missed putting my son to bed. That was my tipping point and now I have no qualms about putting someone in their place. My time is just as important as theirs.

However plenty of clients who would never dream of doing this, who will leave or draw the booking to a close within or bob on time.........no pressure or hanging around.

I too have had similar experiences in one instance  regular knew I had a personal commitment which was important, and had made it clear I'd be happy to give some social time with me (he wanted to cook me a meal and chat before the actual paid hour) so long as I could make it to the event on time. He was still hanging on at the time I was supposed to be elsewhere.

Another newer client who took 20 minutes on top of a slight over run to be shepherded through his shower and redress, took the hump when I said I needed him to leave sooner after time because even with encouragement his 1 hour was turning into more like 90.minutes. He tried to blame his tackle not working quick enough, then that he couldn't afford to book longer. I wasn't asking for either, only that he respected the booked time and stopped trying to hang around for as long as possible.