Thanks guys I just took a shower and did it while in the shower. While doing so, noticed that the marker I was using (I found a red one) was permanent. Oops. It still washed off, though. The funny thing is that right before doing it, I was kind of scared - like it would hurt me. This is probably because my mind recognized the feeling of excitement and thus produced the same adrenaline (if this makes sense...)

My last relapse really scared me because I needed medical attention. Staying SI free wasn't really that hard because I was too afraid of the consequences to act on my urges again. It just wasn't worth it. But the urges do come, especially when someone hurts my feelings (such as by talking about me behind my back, etc). These are the times when SI is most appealing, but thankfully the urges never materialized.