Superman can be real dick sometimes. These are all real. The story behind the "Superman is a Dick" phrase goes back to a transformers message board where a guy started posting a bunch of these in a thread (link). Lots of people started linking the thread and eventually he got a feature page on National Lampoon where you can find more covers with funny little quips commenting on them (link) and his own page with even more covers of Superman being a dick and some other funny covers from different characters (http://www.superdickery.com/).
LMAO... Those are hillarious. Someone should do a book about a Superman (or minimally distinguishable copy) that spends his time doing prickish deeds like that instead of superheroics.
"You wanted to be with me to the end, Lois ---- this is it! SO LONG!" Oh my god this is a funny one. All of these are great, but I might just have to go buy this one.