Airport Yellow Taxi Eperience

I have been travelling a lot recently and in the process have had to take the services of many a taxi in and out of the airport. I had heard rumors before that some of the airport taxis (prominently Yellow colored, premium price: costs twice as much as a regular taxi ride) had their meters rigged. I did not believe those rumors immediately since I have been patronizing the airport taxi service for a while and had no problems...until recently. What happened was that my fare from the airport to my home more than DOUBLED (yes, so basically it cost about FOUR times as much as a regular taxi ride since the airport taxi as I've mentioned has a premium). I checked the receipt and it seems the meter registered almost twice the distance of the route we took (note: we took the same route I went through in my previous rides). Sheeesshh...it grosses me out when some people resort to trickery to earn a living.