Your post reminds me of some instances where I watched someone qualifying on our range, and they mistakenly grabbed a folding knife or a small flashlight from a belt sheath, instead of a spare magazine., when they were scrambling to remain under a time limit; or faced with more multi-tasking than they seem to have expected; or they experienced an unexpected (obviously) stoppage that couldn't be resolved without another magazine.
The results were generally interesting, to say the least. (Especially if having grabbed the wrong equipment wasn't noticed until it didn't fit in the weapon.

)
It was often followed by a discussion of
how and
why certain gear might be situated on a belt (whether it be a uniform gun belt or plainclothes dress belt), and how training to access the specific gear needed for something might be helpful.
You can lead a horse to water ...