2 sardar ji were taking their first train trip to puna on the train.....a vendor came down the corridor selling bananas which they'd never seen before....each bought one... the first sardar ji eagerly peeled the banana and bit into it just as the train went into a tunnel ......when the train emerged from the tunnel after half a minute...... he looked across to another sardarji and said.....i wouldn't eat that if i were you...... why not? says the other sardar i took one bite and went blind for half a minute........:)