I ran a similar experiment many years ago, not with a timeshare but with a multi-level marketing scheme. The tactics they used were very similar. I kept saying

I ran a similar experiment many years ago, not with a timeshare but with a multi-level marketing scheme. The tactics they used were very similar. I kept saying no and they kept inventing new reasons for me to sign up. I finally got bored and said no, thanks, I'm done, and walked out--but even then they were trying new reasons on me until I got out the door.