Nobody is stupid enough to believe you drank an entire bottle of Listerine. That would make you extremely sick, in which case you would have proof that it was actually Listerine which you drank, due to your visit to the hospital. In addition to making you sick, lying to potential (or current) employers would likely get you fired anyway, so good luck with that excuse.

Yes, alcohol does leave your system in 24 hours. Each hour, levels of alcohol in your bloodstream are diminished, because the liver processes the alcohol and changes is chemically. This is why some of you may wonder how it can "leave" your body in 24 hours... it really isn't leaving, it is being chemically changed into a different substance. After 24 hours it won't be detected as alcohol, because it ISN'T alcohol. I don't believe I ever learned HOW it was chemically changed in school, and if I did I forgot, so I pulled this off the web

"There are two ways that alcohol can be processed by your liver. Most alcohol is broken down, or metabolised, by an enzyme in your liver cells known as alcohol dehydrogenase (ADH). ADH breaks down alcohol into acetaldehyde, and then another enzyme, aldehyde dehydrogenase (ALDH), rapidly breaks down acetaldehyde into acetate. The acetate is further metabolised, and eventually leaves your body as carbon dioxide and water."