Ask for my map next time you see me. I will respond with a 568 digit string of ASCII symbols and a burst of recorded static as an octal code on bakelite microfiche, the latter being an encryption of the key required to decode the map contained in the string. The algorithm you will need to recover the key is secreted in a strontium capsule implanted in the epithelium of one of my orifices, and to gain access you will have to feed me smoked bacon. Alternatively, I could draw it.