squint generates a little report of who is spending the most time and resources browsing the internet via your squid proxy server. The top offenders in terms of data transfer, number of files transferred and on-line time are reported. squint now also generates a detailed history for each person which can be viewed with a browser.
squint is useful for discovering problems with internet usage patterns. To determine on-line time, it is guesstimated that after a "hit" the person is reading the page for the following two minutes. So the measurement of on-line time is unreliable, but the system does provide a warning that investigation may be warranted.