Sure. Let him get his hands dirty on Gentoo Quite sure he´ll start asking why certain build flags need to be utilized or why emerge hasn´t got this or that implemented.

And once he starts asking questions, the same way he does them here, the answer will simply be rtfm, RTFM, R-T-F-M (What? you haven´t read the handbook yet? get out of here and take the damn manual with you!).

In the end he´ll just complain and insist a generic LiveCD will be the only way to keep Gentoo alive...

All in all, the feeling I´ve got is pretty much the same as in the foreign country that I live in, when listening to people talking how everything in their homecountry is organised better than in the new country. He´s asking the Spanish why they can´t get rid of their siesta to have a more productive day like the Germans do. And every time a spanish person answers they don´t want or need to get rid of it, he´ll just repeat: but it´s more effective, the way they do it in Germany.

Did I mention he doesn´t speak Spanish and all of this is communicated in German?