It. Burned. Like. HELL.
To make matters worse, in my race to the wash basin to flush out said eyeball, I was lucky enough to round the corner a little to closely and drag my left bicep across two nails. I know have two lovely gouges in my flesh. I immediately applied some good old Neosporin.
I wore goggles for the remainder of our painting.
I will continue to wear goggles when I paint. I like having the ability to see.