How to earn money...

I was going by a taxi to our office in Bangkok. As we arrive I see that the meter shows BHT 60 to pay. I ask the driver if he can write me a receit. After some struggle with explaining since his English was poor, he understands and starts looking for a paper. He takes out a notebook and once he opens it, a teddy bears face is looking at me. It is a notebook from childrens' hospital. He starts writing the receit. When he gets to the part of writing down the sum, he looks up, points at me, winks, and writes down BHT 100. I stay staring at him, he takes the BHT 60, I take my teddy bear receit and we part our ways. I guess that how it all starts... :o))