“Oh, don’t worry it’s fine.”

I nodded my thanks and started for the bathroom. A man with salt and pepper goatee walked along. He approached the alien with a yellow sticker in his hand, which he slapped on its forehead.

It read: HERE’S YOUR SIGN.

I remarked to myself, before everything turned a white-hot violet, that this situation would not bode well for human and intergalactic relations.