I generally frown at people who try to force certain acts like drinking and smoking upon people at a social event. I mean, everyone has a personal reason why they take few bottles or why they don't take at all. This coercive attitude just depicts a form of insensitivity to the matters of life and shows how unruly one can be.
Insensitivity and often insecurity too; I'm not into people pushing me to do anything at all, I'm my own man and know very well how to be that.