The 14-year-old thinks he's funny and well, I guess he is. For my grandmother's 93rd birthday, I made a chocolate cake with chocolate icing; the three generations of women in my family would consider no other flavors appropriate for birthday cakes.
As the cake was being sliced, I loudly announced before anyone had taken a bite that I had made the entire thing completely from scratch - no box mixes, no canned pre-prepared icing. I was quite proud of myself.
The 14-year-old thought this was a good time to quip: "You might have wanted to have waited until we've all tasted it before you gave us that little tidbit of information."