Well, as to Elsa....she's an anomaly. There are a few others who claim their SVs are well-behaved but I firmly believe these people were duped and sold domestic shorthairs disguised as SVs.
{Shaking my head....} Witchy, Witchy, Witchy....
I have personally met Elsa. She even spent a couple of hours in my house recently. She is a very well behaved Savannah, and I guarantee that a DSH was not slipped in. It was very obvious Elsa is realted to the late Rascal and Mayhem. She looked very similar and acted with great poise.
You have speculated that the late Rascal and his brother Mayhem are evidence as to innate terrorist qualities. Yet, my cats are very well behaved.
I will admit I am currently concerned about R2 (Rascal Two is his official name!). He has this overwhelming joy of life he exhibits non stop. It is the emerging high intelligence, much more so than the rest of these spotted wonders around this house (4 total), that is giving me pause. And yet, I will leave it to John Campbell, who I will admit will never believe a Savannah is anything but an angel, to attest to the good behavior of my cats, as he has met all of them.
John Popp, who has some spotted lively cats which I believe are related to (Br)Atticus, might agree to a small extent to your assertions, to whit his recent posting of his wife's frustration with their antics. Perhaps she was having a bad day.....
Snakebite (above) seems to appreciate the recent addition and good behavior.
Witchy, everybody on these threads know you love your dear Savannahs, and wouldn't want it any other way!
Abby, your cat will be just fine. Witchy just likes to use her cats as an excuse to renovate her house.
(I swear, Witchy is writing a fiction novel for later publishing, which I admit will make a great cat story book!)