I see no difference between my pictures that people consider amusing and the rest. To me, it's all serious work - they're just a reaction to what I see. I don't leave this apartment in the morning and say to myself 'Today I'm going to be funny and tomorrow I'm going to be sad.'
I don't think you can create luck. You're either lucky or you're not. I don't know if it's really luck or if it's just curiosity. I think the main ingredient, or a main ingredient for photography is curiosity. If you're curious enough and if you get up in the morning and go out and take pictures, you're likely to be more lucky than if you just stay at home.
When I get up in the morning I brush my teeth and go about my business, and if I am going anywhere interesting I take my camera along.