Harmonica

A man in a red shirt sits on a stool with a harmonica in his mouth, reacting as another man in a white shirt repeatedly hits his foot with a green object, causing him to flinch and laugh; the scene takes place in a room with white walls and a window with sheer curtains, and the man in the red shirt eventually leans back, laughing, as two other men join in, laughing and reacting to the situation.