Happy ghast blinders

I propose that you should be able to add blinders to happy ghasts. These would be a harness, but crafted with tinted glass instead of normal. When riding the ghast, it would behave exactly the same, but if you dismount and walk off of it, it would remain stationary. This would be very useful when building, because it would allow you to dismount the ghast to work on a part of the build, then the ghast will still be right where you left it, and very easy to re-mount. Additionally, if you park it at your base, then come back later, it will be exactly where you left it.