Walk the Line … to Music: This is why we love Evan Schaeffer. This iPod-iBreathalyzer isn’t just for those with an addiction to alcohol. If you think about it, which you may not want to do but I believe in facing life head on, it could be useful for anyone who enjoys even a single drink now and again – and is driving. Who’s to say that 110-pound svelte body of yours (yeah, yeah) won’t be affected by that bar association meeting sherry? Do you want to take a chance?