Healthy Diet?

My colleague and I decided today that we should start eating healthily as we had been having fast food for lunch the past week. Our office is within walking distance of Macs, KFC, Mos Burger and Burger King, so you can imagine how convenient and fast it is for us to get fastfood. Well today's lunch was extremely healthy. Fruits and yoghurt off the shelf at the supermarket. MEIJI yoghurt, to be specific. Here's what transpired during our supermarketing:

Me: Ok, we buy the cut fruits from supermarket. For the same price as the food court, got more variety.

Colleague: Okok.

Me: Then we go and buy the Meiji yoghurt to pour over the fruits ok?

Colleague: Can finish or not?

Me: Can la can la. Fruits only what. The yoghurt very nice one.

(on the way to the fruit and yoghurt section, we passed the tidbit section)

Me: Eh, want to buy Pocky and Collon or not?

Colleague: Huh? Thought we supposed to 'jian fei'?

Me: Orh. K la. Then dowan la.

(still along the way, we passed the frozen food section)

Me: Eh, we brought that kettle-boiler thing to office right? If we buy the potato wedges, then we fill the kettle with oil, you think can deep fry the wedges or not?

Colleague: Eh! You really very greedy leh! Of course not la! But maybe you boil the water in the kettle then we can buy the 'bao' and steam lor!

Ok, so I was being greedy is it? But all we were having for lunch was yoghurty fruit leh. I'm sure some of you can identify with my "eat-fruit-for-lunch-so-can-snack-abit-on-tidbit-later" theory. See, if we had snacked after eating, say, a bowl of mee pok for lunch, the guilt will be there. However, with fruits for lunch, the snacks somehow seem less sinful. Correct or not?