Apologies, Corp. that was me using a touch of hyperbowl for effect. However, on the AFL site you can source this info reasonably easily I think. Carlton always get preferential treatment, but the Toilet's discrepancy between frees received / given away is consistently the highest, even when they were wooden spooners!
I have a theory that certain teams are considered perennial strugglers and therefore a bit rough in play, while there is a perception that other teams are highly skilled and therefore inevitably going to have their skills curtailed by rough less-skilled players impinging. It is hard to break these perceptions - and then there is Carlton, so my theory is shite. It also helps to have someone like Marc Murphy who is still shedding his baby fat, because the umps just don't like to see choirboys getting roughed up. Unfortunately we are the ones starting fires in "Lord of the Flies".