This happened yesterday to my party as we resting from a particularly rough battle with a gobbie in Yuhtunga Jungle.
A player by the name of Kasera, a ranger, was pulling another gobbie towards the zone to Kazham. At first it just seemed like they were running away from it, but they were /anon so I could not tell exactly what lvl they were. Our party was sort of near the zone, but we were well off to the side that it was blatantly obvious Kasera was leading the gob to us when he/she came over towards our group. Once it was in the middle of our group, Kasera used Shadowbind on it and ran a little further away, didn't zone. The gobbie then starts beating up on our Samurai ( thankfully it didn't go after one of our mages >_< ) And of course it was claimed by Kasera and we couldn't voke it away or anything. I sent tells to him/her but got no response.. reported to a GM who was actually rather friendly, knew of the series I books where I got my in game name from :)