I literally almost cried on Christmas.
I was changing my fishes water, and I wasn't really paying attention to what I was doing, because I was cleaning his tank and it's like second nature to me now, and I accidentally filled his tank up with ICE COLD water like legit like 35 degree water (he requires 82* water)
and I put him in, and he stopped moving, no pulse nothing, and he sank to the bottom and was laying on his side, so I felt the water and was like "OH ****, I JUST KILLED HIM" and like my eyes watered up.
So I put the net in and scooped him up, cuz I was about to flush him, but before I flushed him, I noticed he like jerked a little... so I was like "WAIT"
I dumped out all the water, and filled his tank with like 75* water and put him in it, and in like 2 seconds, he came out of the shock and started swimming around. So now im sitting in my room monitoring him, and checking on him every 5 seconds, to make sure he's ok. 
That's him, his name is Pazuzu.