Salt will stand nicely even if he's not at all secured. I know this because he is an escape artist and is very sneaky, but he never goes anywhere. I have panic snaps attached to all the ropes on my posts (my other pony had a seizure right before I was going to clip him to a post, and would have broken his neck if I hadn't had him in hand when it happened--I immediately bought panic snaps). Salt will very quietly take the panic snap in his mouth and work it around until it opens. I swear he has thumbs in his mouth--there is no other explanation. Once he gets himself loose, he just stands there and looks smug until I notice.
This makes me smile
Approved helmet: Every time; every ride.
"When a sport gets to be predictable it ceases to be fun." - RAR's wise brother