Eating watermelon while in China might cause you diarrhea
Your relatives sit you down on their stools in the doorway of their rural Chinese farmhouse. The doorway is the only large shaded area, and there is the bonus cross draft that, in your mind, seems to lower the 30°C temperature. Watermelon slices comes out and you are thankful for their hospitality, but you know that despite your vigilance against waterborne bacteria, you will get the runs. Do not eat watermelon while traveling in China.
