Adrian has posted today about, among other things, edible toadstools, which put me in mind of a wonderful book much beloved of one of my sons when young.
It's The SAS Survivors' Handbook, and it will tell you exactly which fungi you can and can't eat. As I commented on Adrina's page, we came home from an evening out to find said son, handbook in hand, feeding pieces of a toadstool he'd found to our elderly babysitter (she survived, I'm glad to say).
Other useful tips included what to do when your vehicle starts to roll towards the edge of a cliff. Since you ask, I seem to recall that the answer involved rolling into a ball, and then hurling yourself out of the car door. Have you got that? Roll first; hurl afterwards.
You may thank me one day.