My ex used to drink and drive on a regular basis (both day or night). There was no telling her, so as a default I ended up driving whenever there would be booze present. For the first 6 months her family actually thought I couldn't drink more than 2-3 beers in an evening! Buggered if I know how she got/gets away with it. I'm still waiting for the day I see her face show up on TV on RBT though!