Yikes! Sorry everyone, I forgot to let you know that these guys decided my marginal product would be nonnegative.* I am going to Haiti for a week at the end of April.
Based on their instructions, it will be pretty hardcore. For example, they told me to bring a mosquito net to put around my sleeping bag at night.
* I apologize for the geeky econ jokes, but I have to cater to the crowd. It is the analog of fart jokes in Mike Myers’ movies.