This is the heartwarming moment a kind-hearted postman helped an exhausted food vendor push her broken-down trailer.<br /><br />Yoghurt seller Sunisa Iamsakul, 57, was riding her motorcycle cart to deliver the goods in Krabi, southern Thailand on Wednesday (October 16) when suddenly the engine jammed.<br /><br />She had to stop on the road side and try to push her cart in the blistering heat to the nearest repair shop.<br /><br />Fortunately, postman Somporn Butrmud, 30, was passing by. The postie felt for the vendor and helped her.<br /><br />The postal worker said that he was on his way back from the delivery when he saw the exhausted vendor trying to push her fully-loaded broken trailer.<br /><br />He said: "I was driving back to the post office when I saw the vendor pushing her broken motorcycle trailer alone.<br /><br />"She appeared to be so exhausted, so I pulled over and helped her push the jammed trailer to the nearest repair shop."<br /><br />The vendor said that without his help she might have passed out on the way from heat exhaustion.<br /><br />She said: "The weather was so hot and I was so tired, it was so surprising that he gave his time to help me and did not ask anything in return."