Yep, I sure do. When I was in college a buddy of mine had a huge fishtank with six red piranha and one large pacu in it. We'd been drinking beer and he told me he didn't want to keep the pacu any more, so it came out of the tank and a knife came out of the drawer and I ended up pan frying it with some red chile sauce. It was actually quite tasty, (white, flaky meat), but there were a lot of bones.
Brought the friggin fish in to the newspaper office, newspaper writes an article on the piranha look alike and the newspaper doesn't even have a picture of the thing?!?
Thanks, elmer. Apparently they can grow up to 50 pounds!