The worst present I got was when I was about 4 years old. My parents played this little stunt:
They asked me to write a letter to father Christmas, asking for what I want, and they told me if I was a good boy they were sure he would get me at least one thing on the list.
Well, Christmas morning came and there were about 8 presents for me! I was so happy until I unwrapped them. They were all my old toys, just re-wrapped. I was furious!
"That stupid father Christmas!" I said, and then I believe I threw a bit of a tantrum there. After watching this scene with much amusement, my parents finally gave me my real present, but apparently that scene was 'classic'