I once had someone in a nature museum say that "you can tell a venomous snake by their pupils- venomous snakes have vertical pupils." So I said that means your rosy boa is venomous?
Never mind that getting close enough to clearly see into a snake's eyes might be a bad idea. Even those who SHOULD know can get it wrong.
Rudeness is the weak man's imitation of strength. Eric Hoffer(1902 - 1983)
“The greatness of a nation and its moral progress can be judged by the way its animals are treated.” ~ Gandhi