Apparently, Vodka and Tequila don't go too well together. Especially on a quite empty stomach. My Area Postrema (read: vomitting centre) was pretty effective and said no-no twice. arrgh.
But it was certainly an experience. Will know what to expect next time lol.
PS: Hey, Tzen, tmr you'll be flying off to Melbourne for 2 weeks before continuing on to Singapore to do your research. Here, I sincerely wish you all the best and take care. May we meet again in the near future! =)