A Mercedes-Benz and a Volkswagen travelling in opposite directions

Did I tell you I've been selected for jury duty in a case expected to last three weeks? I was going to write a letter to try to get out of it, on the grounds that it will interfere with school and work (which it will), but I've been advised not to do so. A friend who's been through the whole process reckons I should take the punt on this one, where there's always a chance I'll be rejected as a suitable juror on the first morning, rather than risk getting stuck with a lengthier assignment further down the track. His was six weeks.