Translation of Raumkünstler

It actually happened to my cousin's youngest kid. He was repeatedly warned not to smoke in the courtyard of the school. At the end he found himself expelled from the school. It could have been an interesting experience for him though.
I want to study either computer science or do an MBA. I love to programm and I am doing it a lot, although I am very impatient sometimes. I also like math, but I hate writting long letters.
I'm glad as well, thanks for the suggestions. I had little time last week as we had many important meetings. I beg your pardon. Let us continue later. Many greetings from Germany.