I thought of something different sometimes ago, that apart from the passphrase, you could try to do some permutations and combinations on the private key of a wallet to generate another address and eventually get a wallet with funds. This is not what i would want to do though, because it's as good as saying that such person is a scammer, because you are looking forth to rip from where you did not sow.
My intention is also not to hack anyone. Just a curiosity.
One thing I saw a lot of people get wrong in this thread: wallets come with a predefined set of words. It's not random words from the dictionary. The words you can use are actually limited. Just look at the source code for popular wallets and you'll find a file like words.txt or something. So you'd be choosing words from there, not from the universal dictionary.
There are something that are better left unsaid or discussed in the public, I dont think it is wise at this period to be discussing things like it when we know that it has its negative side too, I know we might be thinking it from the positive side, but we have to many evil people in this forum that what is being discussed here would turn to an idea for them act on as trial and see if it will be possible for them to be able to carry out their evil hacking successfully.
I remember breaking of prison became very rampant in my country after prison break became popular movie then to the extent of even showing it to them in the prison, and because of so many of the breaking ideas they had in the movie, many people too were trying some of them and somewhere successful.