On one of my very rare trips back home from Australia (and to the IOM TT)  I once went to a forum meet up for the old real road racing forum (of which I was a paying member).

Turns out that the 'in-crowd' moved the venue from the place advertised to another pub without putting it on the forum so I sat in the original pub on my own for an hour or so then went home.   Fortunately they posted some pictures on the forum to show what a good night it was...... 

I'd have settled for 2-3