Imagine Person B takes Person A out to dinner and A excuses themselves from the table to go the bathroom. While A goes to the bathroom B takes out the ring and puts in the steak that A was eating.
A comes back and continues to eat the steak. B watches them waiting for A to find the ring.
10 mins later and A ate the whole steak and B notices the A is done with the steak and starts to freak out. A asks what is wrong and B tells A that they ate the ring inside the steak.
Person A laughs and showed them the ring inside their hand. Person B laughs along and Person A stops laughing and says "Yes, I'll marry you."