The 'Tail' of a Pardoned Gecko

Today, while studying for my final year midterms, I realized that the baby gecko (cicak) I let live last semester has grown up to an adult size. Moreover, it was making annoying sounds. I decided to let it die on its own via natural causes assuming it won't live long. Besides, catching a gecko in this part of my house (my study room) is relatively harder than other places, as my room is extremely messy with books and stuffs. I did a quick search and I learned that an average gecko could live up to 5 years. This gecko gonna outlive my hamsters . FML.