This is one hilarious shirt!!!
See, this funny pig shirt shows a pig visiting a shrink and telling about his fear, which happens to be a giant bird of prey that stalks him. But, what he really should be afraid of is the HUMAN SHRINK because unlike the bird in his mind or past, or both, the human is much more likely to turn him into yummy bacon, ham, and hot dogs!
This, I think, is a reference to the game “Angry Birds,” in which the survival of angry birds is at stake b/c evil pigs stole their eggs and now the birds must destroy the pigs. This game has become very popular and you see “Angry Birds” stuff around, like on this funny Scared Pigs shirt.