Was there any need??

Few of us from various teams at work were selected to undergo a training regarding a new technology at work. The trainer was an American who had specially flown down from US and this was his first trip to Bangalore.
We witnessed a funny incident during the first day of our training. One of the participant was late for the training. He came in when we had our first break after about 2 hours of the class.
He was trying to get an idea of what was explained and what he missed. He interacted with others and all seemed normal.
The session started again and as it was an interactive one, people were free to interrupt and ask queries and discuss. This gentleman had a query and it resulted in a discussion with the trainer. What was queer here was this man until now spoke his normal language, but as he started talking to the American trainer, he started putting up an accent. everyone could sense his fake accent and it was too much for people to digest. This went on throughout the morning session. People shared their queer expressions as this guy started talking. All he wanted to talk in his newly acquired fake American accent and steal people's attention even though he had no point to make.
The unusual observation was he talked normal outside training during lunch break. It was only at class that he got transformed to an American....split personality huh??
This continued through out the day and as we were getting used to our Mr. Big, our trainer quoted an example of Lamborghini to support a statement that he was talking about. Phut!!!! here goes Mr Big again, this time with a question - "What is it that you told?" in his unusual accent. Ohhhooooo...the entire class burst out laughing. All this while, this man spoke and poked his nose into every statement that the trainer made as if he knew the world and now he asks what was a Lamborghini? It was not that all had to know what a Lamborghini was. It was just that he created too much hype as if he knew everything and anything.
Coming back, the trainer was patient, (he knew how to handle things well) and enlightened our man that Lamborghini was earlier an Italian tractor manufacturing company, which also manufactures sports car and is now a subsidy of German luxury car manufacturer Audi. Our gentleman, without battling an eyelid said thus - "Oh, is that so. I have never heard of Lamborghini. I know only HMT and Mahindra tractors" - well still with his newly acquired fake accent.
WAS THIS ALL NEEDED?