Is mousetrapping unfair?

Mousetrapping grabs control of your Web browser and won't let go. It grays out the back button and all back lines of dialog boxes. It can also disable the X box on the top right of your screen. Any attempt to escape just brings up the same or another pop-up window or alert box. Sometimes a flurry of Alt-F4 hits permits escape by closing the browser. Sometimes nothing but Ctrl-Alt-Del works. Sometimes even that won't work, and the power-off switch is your only escape. Mousetrapping gained public attention recently through litigation cases have focused mainly on trademark and unfair-competition theories of wrongdoing-as well as simple copying infringements under copyright law, because of the relationship of mousetrapping to pagejacking. What remains to be developed is a theory of copyright law liability that could satisfactorily resolve these issues.