Starting from '"If you people only knew how fatally easy it is to poison some one by mistake, you wouldn't joke about it. ', does it naturally lead to the conclusion 'You wouldn't joke about poisoning someone if you knew how easy it was to do by mistake.'
"If you people only knew how fatally easy it is to poison some one by mistake, you wouldn't joke about it. ###You wouldn't joke about poisoning someone if you knew how easy it was to do by mistake.