Starbucks, Service and Sexism

Here is a study full of correlation and a complete lack of Casuality. A very poor study, dismal science but begins an interesting point.
http://ideas.repec.org/p/mdl/mdlpap/0711.html


1. When the barrista is male a woman will have to wait on average 20 seconds longer for her sugar laden, over priced, caffeine addicting cup of delicious heaven
2. When the Barrista is male or woman and the customer is male then they get their cup of heaven faster than all groups.
3. If the patron is below average in looks then they tend to wait longer also.

What does this mean. It means people are starving in Africa and we are worried about 20 seconds spent in line at over priced coffee shops.