I didn't watch the pickle one because, like Anheg said, I've seen the basic stunt before, it's bullshit (like everything on those daytime talk shows).
However, I will say that I have a book which lists about 300 specific types of phobias, everything from various animals (typical) to religious phoebias like churches, God and even heaven. People can be afraid of books or of being cold or of knees!
I think the only cure of course is to force yourself to endure whatever your phobia is until you get over it or die trying. Worked for me and LSD, now we are best friends!
Link:
The Phobias Page-420
PS the book I was talking about is
The Order of Things by Barbara Ann Kipfer I highly recommend it as a reference book