creepy. but it will not happen a lionfish sting is like a bee sting except a lot more painful. the pain will go away if you put your hands in hot(not boiling) water. if your allergic then i could be worse maby a rah or death.but what are the chances. the worst case senorio of being stung is if part of the spine is in the wound then go to the ER to remove. if its not removed it will get infected and you might die.
i don't think its when you get stung, its if you get stung just be ,careful when your hands are in the tank, know were the lion is and you shouldn't get stung.
if you are intrested in lionfish google"Frank Marini lionfish" it has hepled me so much