Did you know, I didn’t?

[Silver]

I have seen some junk used on safety chains, including alloy Karabiners from the $2 shop.

This move also puts a question mark over the use of a padlock alone, instead of a shackle

Thanks for the heads up, and don't forget, if you have two chains, they are supposed to be crossed so as to cradle the hitch if it falls off.