He made the pub discrimination experience: the pub owner recognising their host's imperfect Romanian, asked "are you Hungarians?", and after the "Yes" all eyes turning on them, sent them to a small ugly table in the corner.
Apparently, the Hungarian-Hungarian--Hungarian-Romanian differences are still very strong in the wake of the failed double citizenship referendum. It was the main bone of contention between the hosts and Budapest guests.
And after the Budapest guys left (my cousin stayed for one more day), the hosts truly opened to him - and he says they hate Hungarian-Hungarians more than Romanians. He also told they were unwilling to recognise that the racism they experience in Cluj pubs is the fate of Romanians and Gypsies in Budapest pubs.
The most worrying aspect was that they showed him videos of concerts, on which a bunch of skinheads could be seen, and they they said they are happy about the skinhead attendance - "now that the skinheads are with us, at least the Romanians fear us"... This of course could escalate to something worse.
A reminder: on 16-21 March 1990, in Târgu Mureş (German: Neumarkt, Hungarian: Marosvásárhely), activists of Vatra Românească carried into the city by the busloads (Iliescu pulled the same trick against protesting students in Bucharest, twice: 13-4 June that year and 25-28 September 1991) entered into large-scale street clashes with protesting ethnic Hungarians and Gypsies (a conflict that started with a dual-language table on the front of a pharmacy), even storming the local ethnic-Hungarian party headquarters on the 19th, with 5-10 deaths (some later in police custody). *Lunatic*, n. One whose delusions are out of fashion.
This kind of tension is probably a good topic for a meta-diary.