It's amazing the ways people will find to (attempt to, in this case) kill themselves.
Unnecessarily elaborate ways.
Or just plain dumb; we used to occasionally get the ones who had eaten a few bottles of Tylenol. Guess they got some perspective on what it means to have your life really suck before they died from liver failure several days later.
Helpful hint; if you're going to do it with a case of NyQuil, make sure no one will find you in time. Apparently the effects of the doxylamine and dextrmethorphan overdose make the impending liver failure from the acetaminophen even more unpleasant.