Anyone who knows me at least fairly well also knows that I won't eat anything unless there's a bathroom within 10 minutes or so from my location. About 80% of the time after eating, I also must use the restroom, and my stomach can get quite upset. What does this mean for me when I travel? Well, it means that I do not eat while I am out. At all.
I left at 9AM this morning and didn't get back till around 6PM. I was out on an occasionally strenuous hike, and the last food I had was at 7AM. I was perfectly fine not eating during that period of time. In fact, I was happy, since I didn't need to worry about stomach issue. I could actually enjoy my surroundings without wondering when that next stomach rumble would lead to an uncontrollable need to use a bathroom.
But my behavior does give rise to social tension. Why is the rest of the group eating, and I am not? Why am I being rude by not joining in the consumption of nutrition? Why does the guide have to offer me food repeatedly, only to have me refuse it? Today, everyone assumed I was a picky eater and joked about it. In a sense, they were correct; I'm not picky about what I eat, but when and where.
Don't worry, though. I more than make up for it during my nighttime gluttony sessions.