B-but Carlos, that's messy! xD
I would say I've never drawn an actual cat or dog before. I've drawn maybe cat/humanoid creatures or dog/humanoid type creatures, but never drawn an actual cat or dog. I guess in most of my stories I've never had a need for one...but I've never even sketched out one in my sketch books either.
I do a decent Spider-Man, Flash, Robin(my fave characters)...but I totally SUCK at drawing Batman. It's something about the composition of Batman, that I cant quite capture right. I even do an okay Superman, but never ask me to draw Batman.
ive never drawn a penis