You saw an add for a new medical trial involving plastic surgery. The details are vague, but you figure you can get them when you get to the research facility. So you head out. The weather was supposed to be nice, but as you reach the facility there is a freak thunderstorm. This forces you to run into the building. As you enter you are greeted by a pleasant receptionist that leads you into a room, telling you that an associate would be their shortly to discuss the options with you.
The room seems nice. There is a comfortable chair and a desk with different magazines on it as well as another door. Through this door enters a man in a white lab-coat. Just before he enters you think you hear the other door locked, but are sure it is nothing. This man begins explaining "We have been working to expand the capabilities of human alteration. Surgery can fix many features you do not like yourself, but still it seems some features are still firmly in the hands of genetics. But no more! Have you ever wished you were taller? shorter? wished your arms or legs could be longer or shorter? Maybe you feel your head is too big? Well no more worry as we can fix it!". You note this man seems like he belongs on a car lot as he keeps hyping up your options.
After a few minutes, he gets to the details of the trials, "Ok. So we currently have 3 trials to choose from. You can elect to have your height shortened by 4 inches. Our patented process of adding height is now FDA approved, but we are still in the trial phase at decreasing height. You also have the option of having your head enlarged by 10%, now that we have perfected our 'liquid bone'. Finally, you have the option of having your hands and feet either enlarged or shrunk. Your choice!"
At this point you express your desire to leave, stating that you did not want to participate in any of the trials. The door opens again, with 4 abnormally strong looking nurses entering the room. "You must make a choice. You have already agreed to it in the forms. If you don't, you will be placed in one of the studies at random" demands the associate. You don't remember any paper work, but notice a fife nurse holding a syringe with some liquid in it...
What do you do?