That’s what happened one woman in the Czech Republic did, who nodded off while watching for a train and was lucky to avoid serious injury.
After slowly, slowly, drifting towards the tracks, she tumbles over the edge of the platform. Horrified onlookers are unable to even attempt to rescue her as the train quickly approaches.
However, the train passes over her, and she is soon pulled up from under the carriage. She dusts herself down and then seems to just... wander off.