Now, today, after losing out on Anthriss to alliance killing it, and spotting another Ban'thalos.
Then, I go into Molten Front for a bit...I see npcscan go off right away for Skarr...but it's probably a false alarm.
I check, and it was.
But, I decide to check his spawn as well...he's not there.
Dad calls me for lunch, I go upstairs to get it and them come back.
I return, and skarr is right there as his southern spawn waiting for me to tame him.
Quickly switch to MM, start tame, silence shot, tame again...and he's mine!
Finally.

That's a dead scorpion I killed so he would come out of stealth.