No, I definitely do not think size is overrated. Water monitors do get that large. The reality is that some do not, and that is often related to the way they are kept. I will even admit that if I kept some if mine differently, they could be larger. Maybe not every water monitor will be a 8-10 foot behemoth, but a well kept water monitor should be a large animal in most cases.
I would also disagree that a 4 foot monitor is not that big or whatever term you used. A 4 foot monitor can be an incredibly challenging animal to manage, which is why most people end up dumping them before they reach that size or killing them through neglect when they become a challenge. A 5 and 6 foot monitor is quite the challenge to manage, even a calm and tolerant one. Simply put: they are heavy, large, have sharp claws, generally do not like being held or feeling like they are going to fall (read: being held and they dig in those sharp claws to prevent falling), and even when only curious can cause injuries.
No, I have never seen a dog tame monitor; I do, however, have two dogs for my "dog tame" needs. I have seen calm and tolerant monitors, including water monitors. However, what I see more often are water monitors that do not much care for being held, interacted with, or "played with."
One of my 4 footers is the same age as the 6 footer and is female. Another is female and 3 years or so. Another is a female of unknown age, as it was one of the above mentioned "dumped" when it was too much to handle by the owner.
If you want a water monitor, start with a baby and grow it up yourself. Adults usually come with a lot of baggage that is often unpleasant.
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^x^ Bloodbat ^x^
Monitors, monitors everywhere
and all the food they ate.
Monitors, monitors everywhere,
their parents loved to mate.