Many times at training days I will let somebody else run my finished dogs on the set ups. This gives new handlers practice running blinds at the level they are trying to attain. It also gives me extra time sitting on a bucket of stinky ducks and sporadically throwing the odiferous fowl into the air.
One training day I was actually in the gallery. The gallery noticed the new handler was about to line the blind with my dog. In true training day form they began to give me a lot of grief because the new guy handled my dog better than me. At that point I calmly pulled out my whistle & gave a sharp blast. Dog stopped but looked to the gallery, where the whistle came from. Took numerous whistles & 3 more casts for the new handler to finish the last 5 yards of the blind.