A Hawaii flight attendant's casual selfie at Disneyland turned into an accidental wedding keepsake for two strangers.

• He snapped a quick selfie in front of the castle, unaware a couple behind him was getting engaged at that exact moment.
• The photo caught the proposal in full swing, giving the newly engaged pair an unexpected memento from someone they'd never met.
• He said he doesn't know the couple but wished them well and was happy to have been part of the moment.
• He's wrapping up his trip and plans to fit in one more ride before heading home.

Outlook: He leaves for home soon, and the photo may end up finding its way back to the couple online.