Text: Unless that emergency is coming towards you at several hundred miles an hour and you don't notice until there's nothing to be done about it... 'Yes, well,' I smiled thinly.
Entailment: 'Yes, well,' I smiled thinly, unless that emergency is coming towards you at several hundred miles an hour and you don't notice until there's nothing to be done about it...
Contradiction: I didn't show any emotion and walked away instead.