Starfruit,
Nope, my dialect is shanghainese. According to bai jia xin, there are two sources of my surname. I can only remember one is related to Qin Shi Huang one. Something about a prince given land by name of Pang and then he adopted the surname Pang or something. My great grandfather came from Shanghai but since there are no other Shanghainese around, he spoke cantonese (think one great-grandmother is cantonese). So we only know cantonese, dunno shanghainese. Anyway, my cantonese also half pass six. Can only understand, cannot speak.
Michelle,
Wah, I have never seen your surname. What is it in chinese?