[Coda]

McDonald's coffee makes me poo almost invariably, even after they switched to allegedly-better coffee than the even cheaper junk they used to sell. And I think there might be a qualitative difference between drip coffee and espresso-based drinks, because even in making my own coffee I've had different results between the two. It might also have something to do with how long the coffee is allowed to stand before being served. I can't say for sure but there seems to be a correlation.