What a shame, I loved my SAE. When I'm cleaning the tank, he'll come up and nibble on my fingers, even swimming through my semi-closed hand. I'm not sure I've ever had a friendlier fish, and I love watching his constant foraging (especially when he really rips big pieces of algae off).
And he's been a model citizen until now.
I was hoping all the bad behaviors attributed to the SAE were just due to species confusion, but now I'm wondering if that isn't the case. Although, I suspect mine is not langei, the "correct" SAE.