Whilst waiting to turn right never steer right toward oncoming traffic.
Recently in The Hunter Valley a woman and a child were killed when their vehicle was forced into the path of an oncoming truck when their vehicle was hit from behind.
A search for a link to post here came up nil, NSW Police had deleted it, possibly because they have charged the driver who initiated the collision.
I did find another more recent single fatality which occurred under similar circumstances in QLD.
If you "turn in" whilst waiting re-educate yourself as a matter of urgency and please try to educate others, particularly young folk.
Drive as defensively as you like, it is very difficult to avoid getting rear ended.