United Media grants you a limited, personal, non-exclusive, non-commercial, revocable, non-assignable and non-transferable license to download, view and/or play one copy of the Materials (excluding source and object code) on any single computer for your personal, non-commercial use only, provided that:

* you keep intact all copyright and other proprietary notices contained in the original Materials or any copy you may make of the Materials;
* you make no modifications to the Materials, except as specifically permitted by us (e.g., Collaborative Content as set forth below);

¿Habeís pedido permiso para modificar su obra? Y ya puestos ¿Por qué no citar el original? (Quizás no se diga en el disclaimer, pero un poco de Nettiqueta, que luego os jode a vosotros que os lo hagan)
http://www.dilbert.com/terms/