So I know the poker rules here - thinking more about appropriate action in a friendly game.
PLO cash, heads up to the river. Decent sized pot of about 150 BB. Hero is last to act, and river completes his nut straight flush.
Player who folded turn audibly groans when the diamond hits (wtf?), so hero figures he's not getting paid unless a bluff comes and mistakenly checks out of turn. Action is reset back to small blind who thinks for a few minutes and grabs for chips.
Hero feels immediately horrible and blurts "I swear my out of turn check was not an angle", before the bet is made. Small blind declined to make the bet and Hero just tables the straight flush for the pot.
This caused a few interesting discussions post game.
Question - was this the right way to approach it for a competitive but friendly home game? Should Hero have let the bet come out without verbalizing and just called? Or since action was reopened should they just have raised and "that's poker"?