Since Photoshop enables you to make so many dramatic changes to images, you should consider the ethical ramifications and implications of altering images. Is it proper or appropriate to alter an image just because you have the technical expertise to do so? Are there any legal responsibilities or liabilities involved in making theses alterations? You must make sure you have the legal right to alter an image especially if you plan on displaying or distributing the image to others. Know who retains the rights to an image, and if necessary, make sure you have written permission for its use, alteration, and/or distribution.