Use multi-sig or Super Shamir. Then you couldn't give him the keys even if you wanted to. They risk getting killed for nothing..💀🧡😆
Discussion
Not everyone that smart tho. Plus it can be done if planned right..
It does take some study. But almost anyone can handle multi-sig. Super Shamir is more complex. But the security can go layers deep. In fact. Layers upon layers upon layers deep.
By the time you could ever work that out you'd be an old, old man..🤔👍😭😆