I've only ever hooked myself with barbless hooks fly fishing.
My dog, on the other hand, a few years ago got herself tangled up in a bird's nest of fishing line, treble hooks and sinkers that some jackass had thrown in some bushes by a lake. She must have smelled the salmon eggs on them or something, walked into the brush, and came out with hooks and sinkers hanging from her chest. I cut away what I could, but she wasn't having any of it with the hook removal. I ended up taking her to the local vet, and he ended up having to knock her out so he could get to them and remove them all. Poor dog couldn't move for the next 12 hours and just kept looking at me with this, "Why are you doing this to me?" look the whole time.