My american exchange student arrived today. To make him feel at home, i shot him.
This is a pretty dark joke. What are you trying to accomplish with this?
It's a joke, you dumb fuck. He fell in the mud so I shot him.
It is pretty messed up to make a joke about killing someone, and also messed up to make a mockery of someone's country in this way. While it was just a joke, it is still pretty disrespectful regardless. Hopefully you did not actually cause any harm to this individual.
I didn't really do it but we should also keep the jokes safe, so even if it was a joke.
I'm glad you think jokes should be more safe for next time. Your student should feel welcome, not intimidated from your first meeting! Not all Americans like that, so it would be better to try and actually make him feel safe and at home with less offensive jokes.