Smoking pot makes people talk for long periods of time, for instance, so people who advocate pot won't shut the hell up about it. On the other hand, no one really needs to defend drinking. That's something that frustrates me as a comic: I have to play clubs where selling booze runs the business, so crowds get drunk and yell out a bunch of stupid stuff at me. Pot doesn't cause people to do that. I did a show in Amsterdam a few months ago, and people weren't yelling stuff out at all. They also weren't laughing very much, but I think they were still having a good time.