I was on the Metrobus M91 travelling from Chester Hill to Granville, in Sydney. The girl boarded the bus not long after my mum and I and sat on the seat in front of us. Almost immediately starting to mutter and make comments to herself but out loud. After roughly ten minutes an elderly gentleman boarded and proceeded to sit in the spare spot next to the girl. She responded by telling him to fuck off and physically pushing him away. Shocked, this is when I thought I would start filming in case she escalated and did anything else. Just after I started filming, I think the man behind me must have noticed and that's when he started conversing with her. But I should make it clear that I didn't and still don't know this man, woman or any other parties on the bus except my mum who had no part in the filming and wasn't shown. I managed to film her until she was almost off the bus without her noticing until near the end when she starts screaming that I'm filming her. I never intentionally filmed this for Youtube etc, but it all came together to be a real life example of public transports worst. And after watching I found it highly entertaining and my comment at the end really made it so I decided to see if others liked it too.