You've just reminded me of a holiday I went on without the D (I often take her) - the day after we got home I needed to head out somewhere and decided to take the DeLorean. Couldn't get her started - dead as a doornail. My first major failure. Damnit, had to take one of my other cars.
Half-way to where I was going I'm stuck at a set of lights and a bulb suddenly lights in my head... prior to going on holiday I intentionally ripped out my immobiliser plug and a bunch of relays just to ensure my D was crippled.
Doh...