Accidentally killed Solix the other day because I hadn't read up on the taming strat and didn't realize he would die if he ran out of energy.... I felt a little sorry for the other hunter that was there (although to be fair, the other hunter was going about it completely the wrong way anyway and died at least 3x before I had a go).
On the upside, I did manage to tame Karkin, which wasn't difficult at all. I didn't name it because I had no intention of keeping a crab (I retamed the pet I let go fairly shortly afterward), but it was fun anyway. :)