I was reading Cymbeline (by Shakespeare). How can Iachimo convince Posthumus that he himself  was able to view the subtle physical characteristics (like a birthmark) on Imogen? He (Iachimo) could have bribed a close maid-servant into divulging intimate details about her mistress... as for the ring, he could've discreetly substituted the original with a fake with inside help.... Being the most wisest scholar in the king's court (previous to his banishment), Posthumus should've used his imagination a lot more. And then, he should try to test his assumptions; instead of simply condemning his wife to death.... at least, that's what I thought. 

Sorry, if this entry looks totally random... but then, random is a significant part of me.