Definitely a cactus and not a Euphorbia, just don't know which cactus.

Nancy

Ty. I love it's bumpy self.

Euphorbia will not make you sick unless you cut them and get the latex on your skin or eyes, and only then if you do not wash it off, and are prone to allergic reactions. I have dealt with succulent Euphorbia for many years and never had a problem.

Nice Cactus, by the way!

Christopher.

I am ungodly allergic to pretty much everything... thus my worry

my guess is Gymnocalycium...

Gymnocalycium looks 100% to me, thanks man :D

I think it may be gymnocalycium buenekeri. Take a look to see if that's it.