Bench and Field conduct?

[Gold_Spark]

I wanted to pick your guys' mind on this little practice.

I don't know if it's a local thing or what, but here's the deal.

Let's say Team A is on the 1st Base Side Dugout. Well, if a right handed batter is due up next in the lineup. He will move to the third base side dugout and warm up in Team B's "on-deck" circle.

Is this illegal in any way? And if it is . . . (What if there is a right handed batter currently batting? Wouldn't the on-deck batter be in danger of getting hit with a foul ball).

Inside Knowledge: At the field I usually officiate on . . . the "on-deck area" is in a rather close and dangerous location.

Furthermore . . . how would you more experienced fellas legislate this practice? I appreciate it