Well, it's actually just one yellow balloon, but I had to pay tribute to Nena's song.
We had a party at work today, and as a part of the celebrations they had these helium canisters and a bunch of balloons they filled up with the universe's second most popular material (discounting dark matter and such). I ended up taking three back home with me (they wanted to give me more but there was a limit to the number of balloons I would carry down the street); what we see in the following video is Dylan's reaction to said balloons.
To summarize the reaction, I would say that what we're witnessing is a young animal playing at expressing its dominance over its rivals, which - in our particular case - include a yellow balloon. Watch it and enjoy yourselves: