The moment a live TV interview is gatecrashed by a man in a shower cap

A man in a shower cap has made an unexpected appearance during a guest interview on American news network CNBC.

The incident occurred during a segment with host Andrew Ross for the 'Squawk Box' segment on Monday. (Watch above.)

Karen Firestone, CEO of Aureus Asset Management, joined the segment live from home via Zoom, with the pair discussing the dramatic happenings on the US stock exchange.

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During a lighter moment when they pair were comparing Wall Street to the "dog days of summer", we see a man in shorts and a shower cap doing the dash behind the woman, either on his way into the shower or on his way out of it.

The man is understood to be her husband, David.

The pair ignore the incident and continue the segment, but the hilarious moment was quickly picked up and discussed on Today in the US and other networks.

This is the latest in a series of humorous incidents the TV-watching public has been treated to since live video interviews became the norm during the COVID-19 pandemic.

However, it's an on-air incident that happened five years ago, pre-coronavirus, that remains the most iconic.

In 2017, Professor Robert Kelly was interrupted mid-BBC interview by his sassy daughter, his baby son rolling in on a walker, and his wife scrambling to get them out of the room.

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The family can laugh about it now, although Professor Kelly, now known as 'BBC Dad', admits he thought it was the "end" of his career at the time.

"I thought was the end of my BBC career... that BBC would never call again. No one would ever call again," he said.

"It was fun for us, but I guess it wasn't as fun for them," remarked the host.