Title says it all. I was cleaning the tank and my hand brushed the RBTA which returned the favor with a sting. It felt like a needle sticking into my finger and there was something left on the sting site which I quickly brushed off without taking the time to look at it. First time this has happened to me. It hurt for a while and I did a vinegar and hot water soak. No welts so all OK. Why am I posting this? The anemone was wide open and extended toward the lights and doing great before the sting. Afterwards it was more closed up away from the lights with the tentacles becoming little round balloons. It looks like it's stinging of me took a small toll on itself. I'm not sure if that is common or not. Any similar experiences?