Sarcastic Braden

Braden was sitting on the buggy when we were grocery shopping yesterday.  I gave him my iPhone to play with so he doesn't ask to run around the store again.  When we were at the frozen section, I took a bag of frozen fries since it was his favorite.  I then said to him "Braden, look what mommy got for you."  He was so engrossed with playing on the phone and he didn't even look at me.  I told him "Braden, look, mommy got you some fries."  Again, no reaction.  Then I told him, "Oh you don't look happy that I got fries for you, so I'm just going to put them back."  He quickly looked up at me, showed a huge and very forced smile, and sarcastically said.. "I'm SOOOO happy!"