When I was much younger, my ex and I used to do this somewhat frequently. It always worked.

Timeshare salespeople don’t want to waste their time trying to sell to someone who knows what’s up, came solely for the promotional gift, and is categorically not going to buy. Sometimes we had to refuse to play their numbers games, when they asked for our income so they could “show” us just how good a deal their crap was, but we never had to sit through a full presentation.

We went on a fun, totally free cruise courtesy of one of those companies. Good times.