Sorry, could only find the article in German:
http://www.welt.de/regionales/muench...ss-Lounge.html
Apparently a pax bought a fully-flexible MUC-ZRH C ticket and rebooked the ticket (free of charge) 36 times, after using the business class lounge each time.
LH took the pax to court, arguing that the pax didn't have any intention to fly. LH won the case and the pax has to pay 55Euros per lounge visit.
That's some expensive beer and potato salad.