The bitch has the nerve to sound cheery. I have only just discovered this entire charade and oh boy... Btw I don't think the string was really a nerve, nerves are way thinner...
Either way, I wanted to say that, having worked as a pianist in a renowned ballet, I saw first-hand what the little girls who begin their training have to endure. Physical strain is only one part of it - the greater half is psychological. I am really not surprised that one ballerina just snapped and went batshit crazy. The girls are taught competitiveness since as young as 5yo and they're raised in rivalry with the other girls over many things - who gets the solo, who gets accepted into ballet high school etc. Most of them just grow up to be insufferable bitches with fucked up knees, ankles and just feet in general. This one went stark staring mad instead. If you saw that one episode of The Simpsons where Lisa went to a ballet school, it's not even much of a caricature, if anything, it's presented a little lighter. The girls even start smoking really early, around 13-ish.
tl;dr I used to work in ballet - fuck ballet, it destroys children and young girls.