As someone said. I find cordless to be quite useless, really. (unless I am missing some fact that makes cordless super-duper superior to the corded version) Just... get a non-cordless mouse :p imo It's not like you're gonna carry it around with you.
I finally brought myself to seeing this film and I gotta say I found it quite good. It really made me think about ethics and moral behaviour. The stuff about the milk kinda disgusted me too :p