Olaf is most of the reason I didn't like OB, and the only possible virtue of bringing him back is to kill him, preferably messily. In fact, I can only think of one way this book could avoid being a train wreck:

"Hello, Olaf."

BANG BANG BANG

"Goodbye, Olaf."


"Hello, Peter. Meet Gwen. She's a therapist, which means she's going to be your best friend for about the next ten years. But don't try anything with her or her girlfriend Sylvie will kick the shit out of you. Have fun!"