My mother used to invite my dad and herself on our yearly time-share vacations. For a number of years, I was too wimpy to say "no." We were the ones who paid for the thing! And she even kept saying what a poor investment time shares are! Grrr.

Thing is, they had a lot more money than we did, and could have invited us on a vacation--but they never did.

Finally my mother-in-law intervened, saying she and her husband were coming with us--and intentionally backed out at the very last second, so our family could go alone.