I can safely assume you were not running a Diablo Sawzall blade. A grinder would have cut that hoop in 5 seconds. Had to do the same last week to a trailer I couldn’t find the lock key for.
Not everyone has every dang tool! Yup when you have the right tool you can save tons of time for the one time in ten years you need that tool. What is the best is if your next-door neighbor has every dang tool
I’ve had to break my fair share of locks… We let the powerline company through our property in the summer to maintain powerlines. We daisy chain locks together, and occasionally they let a dummy lock the gate and they lock me out. A few hefty hits with a hammer has always worked for me.