If you have ever seen a Crested Gecko, you will have noticed that they are very flighty creatures. They are always looking for the next place to go, something to jump on, somewhere to hide. That often makes people think that they are not very friendly or do not want to be handled. While they are unlikely to want to be handled without training and persuasion, they are actually very friendly animals. Crested Geckos are one of the more friendly of the Gecko family.
The problem is with their tail. If you are only just starting to handle your Crested Gecko, they may want to keep running about. Therefore, they may get onto your shoulder, on your back, or anywhere else they can. That leads people to instinctively try to grab at them to bring them back to their hands. If you pull the Crested Gecko by their tail, they may release it, leaving them with no tail at all. And unfortunately, they do not grow back as with some other Gecko species.