One of the top five Knopp family values transmitted to me as I was growing up was "sunburns will be the death of you." Thus, when I got my sunburn on just an average day, I knew something was up. Worse yet, I was more irritable about the subject than I usually would be because of my increased anxiety. To be fair, it is not possible for me to know if these symptoms were the effects of St. John's wort, but since they were extremely unusual, I think I can assert these claims with some assurance.
Anyway, to those who say "I told you so" about this experiment, I'll just respond that knowing is better than not knowing. Now, I'll never have to wonder if I could have lived life on an untamable high without the use of illegal drugs. But, needless to say, I'm not taking St. John's wort anymore.