I sold a ray to a friend who also keeps bass and his tem was too aggressive and the ray stabbed him in the side. Luckily it all turned out okay though lol. They tend to learn they're lesson after a little while.
Yah, he got it in the side last time he is not a very quick learner I guess. I think being native to the same place P-bass may have a higher tolerance for their venom just a thought though.