Plecos can easily get stuck in a net. I just read this online about bristlenoses...
Bristlenoses have evertible interopercular spines at either side of the head, which appear when the fish is upset. The spines are tipped with minute hooks, which can make it difficult to extract a bristlenose from a net.
Fluff, I know this sounds dumb, but I have always been terrified to handle my plec. I have seen pictures of people holding them, but I can't bring myself to do it. Doesn't it freak you out?