I’m always interested in how technology changes social behavior - in this case the technology is beer and chalk.
We went to dinner in San Francisco with my good friend Mike last night and then for a drink at his local, Finnigan’s, afterwards. I took this picture in the bathroom. (You might say I was influenced by the Guiness.)

Its a pretty interesting social experiment. What happens when you stick a chalkboard next to the urinal? You’ve now empowered the guys in the bar to post a message that is available to the other guys in the bar. Its a kind of low-tech Jambo tagline. I can think of hundreds of creative uses for this temporary, location-based messaging system. I wonder if there is another one in the women’s room? Interestingly, its also a kind, subtle way of the management saying “please don’t write on our walls”.