Scream (2007 Dark Horse) #2

Something strange is happening to Danny Duncan.

Recently released from the Belle Foux treatment facility for his psychological troubles, Danny returned to a soul-crushing day job at the post office. Even though he knows he went through the Belle Foux program, Danny can't remember a single thing about his stay there . . . and his emotions are affecting coworkers and customers in bizarre ways.

Now caught in the middle of a bank holdup, Danny's just been robbed at gunpoint of his father's most valuable possession-a Purple Heart. His desperation and anger have suddenly manifested a horrifying creature, and all bets are off!