On the subject of pooing and dinner plans. When the dog does a shit on our walks I always go through the following thought process.
Oop, dog's having a shit.
Don't think about food, DON'T THINK ABOUT FOOD.
Don't think...
I'm hungry, can't wait till dinner.
Bugger.
Then when I'm eating dinner, I'm tormented by mental images of a winking dog anus and a slowly mounting coil of shit.