A man saves a toddler's life at a supermarket checkout in this uplifting video that has gone viral around the world.
It's the perfect way to mark today's International Day of Happiness.
What will make you happy today? Comment below or tweet @ThisIsNottm.
International Day of Happiness, March 20, was established by the United Nations last year.
People are asked to make a pledge to bring happiness to others.Video: Man saves toddler's life at supermarket checkout in Perth, Australia
