Didn't the late great JC hold service in sandals?
I feel like you might be referring to my comments, and just to be clear (read; defensive!) I never said flip flops or cargo shorts, they're nice looking shorts and they're sandals, I can run in them and I can operate in them.
Sometimes the way I dress is how my wife likes me to dress and no one would ever expect a gun under there, which can be a tactical advantage, reference the OC CC debates. I'm not head of security by any stretch, I'm actually hidden away in the sound booth for the entirety of the service as well, and prefer running under the radar, and not wearing a shoot-me-first vest or pants helps with that.