Unfortunately, I don't know that too many players experience similar issues. I could see it being a problem if you play when you're on public transit, or if kids or others are around bumping into you, but it seems not common enough to warrant much attention. So I doubt this would become a baked-in feature.
That being said, the game is open source, so if you or someone you know is tech-savvy, it likely wouldn't be too hard to implement. If it's done well, Evan might even accept a PR.