Note:
If the thrower moves into a non-moving marker who is legally positioned, this a foul by the thrower. i.e. if the thrower moves into a space the marker has already occupied when the thrower started the throwing motion, and the marker is not in breach of; straddle, disc space, wrapping.

Extra:
If a thrower intentionally makes contact with a legally positioned marker this is an offensive foul and also a breach of the most important rule - Spirit of the Game.
If the marker is legally positioned and is moving their arm directly away from the thrower, and the thrower initiates contact with the markers arm, this is a foul by the offence.