He hadn't even considered toxicity to be an issue or concern; one of the dangers, I suppose, of having lived his entire existence as an immortal being. Messes were merely inconveniences, and not often threats.

"So we threw off the balance, I see." He was familiar with chemistry, having been around when humans first bungled through their various brilliant discoveries, but the sciences were not generally the domain of Heaven. Still, he was a smart person. Surely he could figure this out. It was numbers. Numbers and measurements and rather like cooking. Wrinkling his nose, he disposed of an overly sticky towel into a waste-bin. "Such a shame. I really thought I was catching on."