Can "Running With Scissors" Be Freyed?

I'm reading the memoir "Running With Scissors" to see if it can be checked for authenticity. Smokinggun said they didn't want to be the literary police but that a lot of people brought this book up as being suspiciously wild. Certainly 60 pages in, the book is pretty outrageous: a mom and dad who break up and dump their son with a hippie therapist who lives in squalor, including a little boy running around naked and defecating under the piano to the applause of his siblings. However, none of it (yet) is public record, so nothing to check (unlike Frey's prison term, etc.). Anyone read this book?