Ladies hiding behind the door

[Petros]

OK, It's the done thing — you eventually find the ladies door and you ever so gently knock — the door opens and you walk in and then have to look behind the door to see your drop dead gorgeous reward for managing to follow the cryptic directions who is about to take you to cloud nine

But I'm sure there have been some deviations to this ritual — what was your worst, best or just generally strangest experience when the door opened?