Here's something fun: a little secret thing added to the current-gen versions of GTA 5. Do not read past this sentence or look at the video if you wish to remain unspoiled.
According to the video posted to YouTube by taltigolt, players can eat Peyote in the desert, start hallucinating, and think they have turned into a chicken.
Because of this, the player "actually" turns into the fowl for a short period.
GTA 5 is out on PS4 and Xbox One today.