I agree with
The New Yorker review of this film."Rancid and unpleasant “black comedy” about a stupid mall security guard (Seth Rogen) who has delusions of grandeur. It’s the kind of movie in which everyone but the hero and a chaste innocent (Collette Wolfe) turns out to be rotten and corrupt, and the director keeps scoring off the hapless characters, as if nastiness were some new form of hip. It doesn’t work: the jokes are just sour, the violence is miserably staged, and the actors, including Anna Faris, Ray Liotta, Michael Peña, and Celia Weston, get trashed. The plot is devoted to a chubby middle-aged flasher who terrorizes the mall. The movie’s audience gets treated in much the same way as the flasher’s victims."
Exactly:
".... as if nastiness were some new form of hip."