Geologists are used to seeing each other on field trips, which commonly means without make up, scraggly hair (especially in my case!), unflattering outfits and slightly grubby hands and faces from clawing around in the mud looking at rocks. So once a year the geology society puts on a formal ball for us to attend giving us the opportunity to have a shower (okay I lie, we are not that bad!), don a swanky dress or suit, do something fancy with our hair and take lots of pictures for evidence.
And I must say, my year do scrub up well: