Relevant here: "I use a trick with co-workers when we’re trying to decide where to eat for lunch and no one has any ideas. I recommend McDonald’s." By throwing out a "wrong answer," better suggestions are made.
When patients are having MRI scans I ask them what they would like to listen to. Everyone says they don't mind. I usually reply "Excellent, Meat Loaf it is!" And surprisingly often get a positive response. That or a specific request.
That happened to me all the time at my last workplace. If no one cared I'd throw out Subway as a suggestion, because I'm actually low-falutin' enough to be just fine with Subway. Although a good third of the time no one had a problem with that either so Subway it was.
https://medium.com/what-i-learned-building/9216e1c9da7d