Outdoors and indoors I have tied plants down and over.
The primary reason is to reduce height.
Outdoors you can tie them or train them to do some funky things.....
You can change the shape or profile of the plant so it's not readily recognizable as the dread ganja. Better stealth.
This is a pic of a plant I tied over in a window box container....I had to shorten plant to get closer to light in stadium arrangement.