Nikola would honestly really like to be alone with his weakness, but as that's not so much an option, he'll bear it the best he can.

He won't, however, make small talk as the poison works through his system, seeming to burn through his insides. He doesn't cry out with the pain, though, simply grits his teeth against it, occasionally gasping when it's too much for him.

And then he starts to seize, and his hand goes rigid around the branch that's holding him up.