A fews days ago, producer Dan Lin (EP on the Lethal Weapon TV series) revealed that a fifth and "final" Lethal Weapon movie is close to happening, with original stars Mel Gibson and Danny Glover on board to reunite with series director Richard Donner. Following the news, It's Always Sunny in Philadelphia's Rob McElhenney saw IGN's Twitter post about the news and use it to write the perfect comment... Sorry boys.