"Not wanting to leave Fraser littered with our garbage, we made sure to gather everything we were to discard. I had seen a lace monitor roaming about the outdoor lunch area, scaring a few other tourists and looking for scraps of food. I eventually lost sight of him...at least until I tried to pick up the bag of garbage I had been filling. The lace monitor had popped up and had one set of claws on the lip of the bag, preventing me from taking it. A comical tug-of-war ensued with me trying to make sure the reptile didn’t rip the bag or make off with it. I eventually was able to remove the bag from its claws without getting bitten.
They're quite used to people, which is a problem. However, usually it's the visitors that do the dangerous stuff by not paying attention to their guides.