It isn't just pointy shoes that are a problem.
When doing my first landing in the Aero Commander 685 at Chattanooga, I nearly went off the runway.
Those of you that fly Commanders know about its steering.
The offending shoes were leather soled, and when I went to apply brakes one shoe slipped giving me brakes and steering only on one side. Hence the rapid side ways motion.
Lesson learnt, even after 6000 hours, I now wear good quality boots with a good rubber sole.