Oh, that's reaaaal easy to answer!

[He barked out a rude little laugh, sticking his tongue out obnoxiously. Ban looked aside from Sieglinde, seemingly enjoying himself at that.

She looked as if she was in deep thought before finally caving to answer him--so, he thought he'd entertain her with something to distract her from whatever had her gears turning.]

I can get drunk, but I can't be poisoned~. So, I could drink all I want, all day, and it wouldn't turn out bad for me!