I agree the owners are the problems just as in unwanted dogs,but now that the problem is there they have to do something to stop them from ,like MikeyT said,taking over the natural environment that they have been let loose in. Tegus are very cool if they are cared for properly by their owners. I don't think it is fair to compare dog bites to exotic animal bites, because obviously,you don't even need statistics to know which happens more often.