Shlomo, a wet dream per se is not scary. If it happens, it happens and I had no control over it. Usually what happens is that I will start having one, and I realize what is going on and will wake up. So it doesn't happen, but it seems to linger the next day, and I have had it happen in the past, that when things get to that point, if I allow the thoughts to flow through, I don't have to do anything else other than think and it will happen. So this is what I was afraid of yesterday, that while I was conscious, I would MZ"L without physically or actively trying to induce it by looking at objectionable material or using hands.
Although, according to the book, The Garden of Purity: for Men Only, by Rabbi Shalom Arush, nocturnal emission is a big deal, and that one should go to a mikvah afterwards, and make tikkun for the lost souls lost due to the nocturnal emission....Actually, a very interesting read.