I was making a map on the monolith of fate, and I believe I got a hit from a scorpion. So I was on poison, which never ended. I finished the map, went back to town, started another map, finished … the poison just did not stop. It was even fun, because with the active fire shield, I could be throwing lots of fireballs. I relogged and finally the poison ended.
version: (0.7.0g)