Yuma Attacks Candy Cane

Note to self... yuma and candy canes don't mix. Just bought the candy cane coral and saw this when I came home from work. Took the flesh off of one side of the candy cane so I'm probably going to have to frag it. The yuma normally just lays flat and minds its own business but you can see it inverted and reach way up to sting it. I was under the impression mushrooms were not very aggressive but I was wrong. I moved the Yuma. Guess I'm down to one candy cane head. There is a ricordea nearby as well so now I'm paranoid.