When a classmate told six-year-old Lex that her big brother was "weird" she didn't take it lying down. Lex's nine-year-old brother, Frank, has autism and the hurtful jibe inspired her to speak up and take a stand for disability equality.
The young activist wrote a heart-warming letter to her teachers asking them to provide better education to students about different disabilities. She then presented the letter to her school council.
"My brother has autism and is not weird. I would like it if we could learn about all disabilities in school so that everybody understands that some people are different but we should all be treated the same," wrote Lex.
Lex's mum, Sophie Camilleri posted the letter on Facebook to further spread the youngster's message about disability awareness.
"I'm so very proud that Lex has this view and wants to change the way other children view others with disabilities," Camilleri said in the post.
"She is only 6 years old and is already part of the school council, wanting to make this change."
The post has gone spectacularly viral, attracting 21 thousand likes and almost 30 thousand shares. Many of the comments praise Lex for speaking up.
"Lex, I work with people who have autism, and I just want to let you know how proud I am of you for standing up for your brother and trying to teach your classmates about autism," wrote one commenter.
Another person wrote: "Brilliant. As a teacher of students with ASD I wish there was more awareness."
The letter has even caught the attention of the UK's National Autistic Society, who shared the post on their own Facebook page.
"We think there should be much more autism understanding in the classroom which is why we are encouraging all schools and nurseries around the country to sign up to our free autism resources," they wrote.
Speaking to Buzzfeed news, Camilleri said that the reaction to Lex's letter has been really amazing.
"I keep looking at how many times it has been shared on Facebook and I just can't believe it to be honest with you," she said.
Likewise, Lex has been enjoying hearing what everyone has been saying about her letter.
"She loves hearing all of the lovely things that people are saying," Camilleri said.
"I don't think she quite understands how much of an impact her letter had made though," she added.
Camilleri also notes that although it was great that the issue was getting attention she was "upset" that Lex had been so upset by her classmate in the first place.
"It makes me really sad that no-one knows about these disabilities, if they were made aware it would change a lot of things. I think it would help kiddies to know about autism and the symptoms that come along with it," she said.
"I suppose it is confusing for them and it might be a bit of fear, because they don't know what's going on with the child."