Guy from the city water utility, who was instrumental in getting Szoftex the deal with them to buy the household billing app. Then he was hired into it, and started selling the app to a few more cities around. Good guy, nice to talk to, always ready for a joke. Slightly cross-eyed outwards, a betyár's moustache.
When I wrote a general search utility - something like a query builder, for single table - he tested it (while still working for the city at the time) by searching for surnames ending in "né" and the account being in some arrears, the address near enough. The suffix is given to wives (so Orvosné is mrs Orvos), and if the account is in her name she's probably a widow or divorced, otherwise it would be in husband's. Then he went to check their meters...