Ok if this is not appropriate for this tread send me packing and I will start a new one! Don’t mean to highjack....
Good heavens Mr Okydowky, you can't go butting in with a real life question..... we are all far too busy telling each other the right way to do things! sub titled'not on my boat you won't'
However,I am amazed to read that an owner, whom you do not seem to have met before, allows you to stay on his boat for three days, gets his wife to make up your bed, with fresh towels to boot, and then grinds the coffee beans for a perfect cuppa!(yes, i know you didn't say he actually ground the beans, poetic licence)
Now I am a pretty relaxed bloke, however this is a different league entirely. You are obviously dealing with a most uncommonly delightful old fashioned couple, or the most artful & practiced con men out there.
Back to your question. On the face of it there is no reason why a 36' semi displacement vessel should not be reasonably stable at the dock. I am wondering what your previous experience with boats is.
As you have the luxury of three days to get used to the boat, see how you feel then. You may get used to the movement and your dad may also get used to the restricted passageways that a 36' entails.
Looking forward to you next post to tell us all how you went.
Cheers,
Andy