This is Derp (thank you 9Gag). He saw something he really liked but unfortunately, his wallet was empty. So, he goes home, disappointed. Then at home, he lies in bed and an idea come to his mind. He started planning. Every "pocket money day", he spends but keeps the balance. Basically, it is a "sikit sikit lama lama jadi bukit" situation. A month later, he went back to the shop only to see SOMETHING else. He was devastated but realised something. The new item is cheaper and he realised that by buying that new item, which is nicer than the previous one, he could still have balance and he could still save up for something else.