Yet still some people play it.
Damiano Defence

Black doesn't have to take the Knight. Here's the famous game where Fischer played against the Damiano Defense in a simul and only managed a draw.
PGN source:
https://www.chess.com/blog/KingsBishop/damianos-defense
Why would this opening be classified as an opening if it is very bad? Look,this is a knight sacrefice that pays off.Either lose the pawn or lose a rook and pawn.