poor grad student

Somebody else posted a link to the article about Rat drug may boost sex drive in women, study finds

Said article states:
The female rats flirted more when injected with the drug

Some poor grad student had to watch these rats and figure out if they were flirting, and then record it. I don't think I want to know how you tell if a female rat is flirting. (Although I'll bet there are people on my flist who know.)