OP, I know how you feel. I absolutely hate losing tools, whether stolen or just lost. I also have a lot of tools that I’m particularly attached to although none of them are heirlooms since I’ve had my entire tool box stolen more than once back in the ‘90s.
I am so fortunate to have my cars and tools in a safe place where everything is right where I left it last time. Knock on wood, though, nowhere is 100% safe.