That would never happen, right? Unless ...

https://bitcoin.org/en/alert/2013-08-11-android

https://bravenewcoin.com/insights/blockchain-info-bug-exposes-users-private-keys

https://medium.com/mycrypto/disclosure-key-generation-vulnerability-found-on-walletgenerator-net-potentially-malicious-3d8936485961

and those are just a few examples.

That is why for large amounts of value, ... rolling dice, and other similar methods for obtaining a private key is not necessarily unwaranted.