Is Ignorance Bliss?

My business travel is at about 75%.  So, I am quite frequently dining out with co-workers.  Because I am using my blackberry (smart phone) to track calories, everyone sees me pulling up restaurant nutrition info on my phone before placing orders and then while waiting for the food, I am usually keying my menu or calorie counts into my phone.  I recently hired two new team members who are now in the process of re-locating from Spain to Nashville, Tennessee.  The other day, I overheard them in the back seat of my car, talking in Spanish about my always entering what I eat into my cell phone.  They weren't really making fun of me but just talking about my new quirk.  Sometimes at dinner, co-workers have begun asking me about their calorie counts, usually while they are eating.  This is a bit dangerous as they are usually uncomfortable when they realize that their pizza is 600 calories a slice or that their 18 ounce rib eye steak cooked with butter is close to 1200 calories.  Most people worry about calories when they are aware of the counts but actually would rather remain blissfully ignorant.