[malux85]

Maybe also -

Add an immutable time stamp to the phrase, so I can say “Alice warned Bob about that problem on DD-MM-YYYY” so that when Bob gets hit with it 6 months later, exactly as Alice predicted, Bob can’t say “You never told me that”

As someone with a near perfect verbal memory (I can recall conversations verbatim from my whole life) it’s incredibly frustrating to have people deny that I told them something, when I can recall the exact date, time and words, when I did :P