Bus follies, Part 22

Loud people in public drive me nuts. On the busride to work today, an asian guy sat next to me and was talking so fucking loud to the woman next to him, I had to turn up the volume on my ipod. That led to him tapping me on the shoulder insistently, and this gem of an exchange:

Him: 'Whyyy is yo music so loud?'
Me: 'Why is your voice so loud?'
Him: 'I not loud. Yo music loud. Velly annoying.'
Me: 'If you weren't fucking screaming at the person next to you, I wouldn't have to listen to it at such a high vol--'
Him: 'My language spoken like dat! Not loud! Cantonese spoken like dat!'
Me: 'Buddy, you're not the only cantonese-speaking guy on this bus. Are any of them fucking screaming at each other? Only you, bud--'
Him: (Screaming again): 'Not loud! Not loooooud!!'
Asian guy across from me: 'Shut. Up. You're a disgrace to our people'.
Me: 'Yea, you're a disgrace to your people.'
Him: 'Not loooud! 'Fuck you! Fuuuuck you!'

He got thrown off the bus for causing a disturbance. Seriously, is Cantonese supposed to be yelled at each other instead of spoken? What kinda shit is that?