When attacking a crossbow Piglin while it is admiring a gold ingot it will sometimes pocket the crossbow or drop the crossbow to the player instead of the gold and then proceed to melee the player while holding the gold. Punching Sword Piglins causes them to correctly pocket the gold and attack with their sword
(Attachment is a youtube link do to the file size being to large)

https://youtu.be/Pt-WtS_j4L8