I picked this book up today called Astonish Yourself
It's a silly title for a very fun and interesting book of quantum psychological & philosophical experiments to run on yourself and others. I only can recommend this type of experimenting to open minded people and for those of you among us, it will open your world up a bit further to the malleability of "reality", your perceptions of yourself. Other personality types won't do these mental excercises and just say this is a useless venture. There are a few excercises available in the book preview on Amazon but they get weirder and more interesting further on in the book.
Have fun and maybe put a sticky note on yourself with your address along with the disclaimer "If found please place in nearest mailbox, return postage guarenteed."