For the most part, Will Smith looks like a chill dude.  He's always smiling and laughing at interviews and red carpet events, just a man very content with his life.  Except we all learned a valuable lesson from him the other day: do not try to kiss Will Smith on the lips. The Fresh Prince is not a big fan of unwarranted advances from reporters, as seen in this clip from a Moscow premiere for Men In Black III.  

As you can see, Big Willie style is not too pleased and offers a solid shove and accompanying pimp slap to set this guy straight.  Rumor has it the reporter has a habit of kissing celebrities he interviews, but let's say this one did not go as he planned.  It kind of reminds me of the clip from a few years back, when Tom Cruise got sprayed with water by a prankster and things got awkward.  Granted he didn't physically strike the guy, rather reprimanded him like you would a child.  I'll leave you with the gif to enjoy him slapping this fool over and over again.