The best policy is to have a lock that is resistant to cutting and destruction, with a trivial key. Nobody tries to pick a lock, and if they do, they're winning. Most or all breakins happen through brute force not technical sophistication, so a decent chunk of metal is a fine adaptation.
About the only thing I've seen that qualifies is the no-car, metal gates to walking/camping trails in State Parks (PA, anyway.) The key-lock is surrounded by a 1/2" steel can, with only the bottom open and some distance to the lock itself. Attempting to pick that would mean being upside down 2 feet off the ground. The steel shroud would thwart a casual angle-grinder for long enough not to bother.
Most other security for locks I've seen could be defeated with 60 seconds and a 3" cutoff tool that fits in a pocket.
Good old "sketch-resistant materials". If a tweaker can't get through your lock/chain before the cops (might) show up, you're probably fine.
When all else fails, drummers are the best security anyway: https://loudwire.com/sleeping-drummer-stops-band-trailer-the...
[dead]