Dude, I had to go, it wasn't game related at all. I knew my partner still had a chance, it is actually better that the guilty was on me. I will +k because I am nice, and don't get butthurt over unranked. But honestly, I did have to go. And I hate having suicides on me.
I mean, yeah it is a tactic, but it just leaves the fool in a position of "oh. wow..." Idk, I felt kinda bad about it and you got your karma, so it's all good :P