Granted, but then you realise that you hate the taste of Dr. Pepper because it tastes like medicine. You then promptly spit it out in disgust. 

Worst case scenario, you find that you love the taste of Dr. Pepper and that you're enjoying the taste of the beverage you got through your wish. In that case, you look down at your hands to discover, to your horror, that they are now covered in green scales. You've been turned into a reptilian.

I wish that the next post will be as inspirational as it is offensive to all people.