Simple Satisfaction

Boy A: Woo~~ Fill, fill, fill~
Boy B: Oh yes! It's almost full, it's almost full!

Taiwan's McDonald's has recently introduced the drink-refilling service. On this one day, I was sitting in the McDonald's restaurant near the Beitou MRT station with the Lady, and these two boys were filling their plastic bottles with the many times of drink-refill: they would go ask for a refill, come back and pour the drink into the plastic bottle, and go on asking for another refill. Before this green bottle pictured here, they had just got a white one filled, and, though not very obvious from the picture, they were really excited.

And, satisfaction can be this simple.