A big smallie did the same to me, but into my middle toe on my foot as the fish was violently flopping on the shore; I had to get it out of the water before it was played out due to the threat of it going under large rocks.

Excerpt from Robert Crais' "The Monkey's Raincoat:"
"She took another microscopic bite of her sandwich, then pushed it away. Maybe she absorbed nutrients from her surroundings."