One reason could be that she is extremely nervous. Maybe she's not used to public speaking or sharing her story in front of an audience. Another possibility is that she might be physically unwell. For example, she could have a sore throat or some kind of respiratory problem that makes it difficult for her to speak smoothly.
Perhaps the story she is telling is very emotional or disturbing for her. It could be a personal experience that brings back difficult memories or strong feelings, causing her to gag as a physical reaction to the intense emotions. Also, she might have accidentally swallowed something wrong just as she started to tell the story.
He could be nervous. Maybe he's not used to speaking in public or sharing this particular story. The stress of getting the story out right might make his throat feel tight, leading to the gagging sensation.
There could be several reasons. He might be trying to hold back laughter while telling the story and accidentally start gagging. Or perhaps he ate something that didn't agree with him right before starting to talk, and it's causing discomfort in his throat as he tries to speak.
If the gagging continues, check if she has any medical conditions. Maybe she needs to sit down and rest. You can also try to distract her from the situation. For instance, start talking about something completely different and light - hearted. If there are any strong smells around, try to remove the source or move to a different location.
This is a very abnormal situation. However, if it were to hypothetically occur, it could be due to some sort of psychological disorder where boundaries of appropriate behavior are blurred. But this is highly unlikely in normal circumstances.
If it's due to nervousness, taking a few deep breaths before starting to speak can help. This calms the body and relaxes the throat muscles. He can also try to focus on something else for a moment, like a spot on the wall, to take his mind off the stress of telling the story.
It could also be due to nerves. If he's nervous about telling the story, perhaps in front of a large audience or to someone important, his body might react in strange ways and gagging could be one of those involuntary reactions.
There could be a physical issue. For example, if he has a problem with his throat like a minor irritation or something stuck in his throat, it can lead to gagging while talking. Also, if he has a reflux problem, stomach acid coming up can cause discomfort and gagging.
Maybe it's the sudden and unexpected gagging that adds a comical element. It could be that his normal storytelling is disrupted in a humorous way, like he chokes on his words or makes a funny face while gagging.
First, stop him from talking for a moment. Ask if he's okay. If he's choking, you might need to perform the Heimlich maneuver if you're trained to do so.
Maybe she was recalling a very sad or traumatic personal experience. For example, it could be about losing a loved one or a difficult time in her past that still haunts her.