All the audaxes I've done have had either manned controls where you get your card stamped, or info controls where you try to answer a question (that is normally straightforward, but sometimes infuriatingly baffling, but that's another story). But I've now signed up for one with free controls where you have to get a receipt. Now, years of filling in expenses forms and screwing them up have taught me that if it's possible to do something wrong, I will do it wrong. So: For a free control where you're told to get a receipt, what's the procedure. Is it possible to screw it up? Or do I just find a garage and buy a lion bar? What do I do then? Do I have to annotate the receipt for the organiser? What if nowhere is open? Or if I can't find anywhere where I can leave my bike with adequate security? What could possibly go wrong?