Make sure that your 'source' is
reliable.
Test him by asking pointed questions.
'Did he ACTUALLY say this?'
'Yes, I think he did.'
'But did he ACTUALLY say this?'
'Well, it SEEMED that's what he said.'
'So, he DIDN'T actually say this?'
'Well, I THOUGHT that's what he meant!'
Know anybody like that? RUN!!!
It will save much heartache and confusion if you can find a reliable source that won't overexaggerate or add to someone's elses words or thoughts.