24 years ago this week. Think the date was June 28th 1988 when I flew NCL-LHR-NBO.
My father was a paid for member of the executive club and he took me into the NCL lounge (landside and no windows). My mother waited with my brother who wasn't travelling in the public lounge.
BA at T4 wouldn't let the three of us in (membership allowed 1 guest), but staff at NBO were a bit more obliging a couple of weeks later. ^ (I don't think money changed hands....)