Forget all that graphic design and creative art nonsense, Photoshop was made for messing with people. The first thing anyone does in their high school Photoshop class is use it to screw with friends. Photoshop trolls are the kids who bothered to listen and learn so they could fuck with people even harder. The pictures below are just a few examples of their work.
1. When your absentee friends asks to be photoshopped in
2. When it's a group photo but you're a star
3. You asked for it
4. Technically, this is what he asked for