Ikea does such a good job with the faked living rooms, bathrooms, and kitchens they set up in each store to tempt us into spending money, it’s a wonder more people don’t make themselves at home.
As you may have noted from the accents this took place in the U.K., which is a good job really. As YouTube commenters have noted, had it happened in the U.S. things may have ended in a slightly different way.
The store staff were incredibly polite in stopping the party, simply asking everyone to move on, and escorting the prankster out of the store. Which is good to see, as he clearly didn’t mean any harm from the stunt.
I’m amazed how many people actually got involved, grabbing a drink and having a dance. Unfortunately no one ended up taking the action into the bedroom, as happens at most house parties.