Hmm, the above usually means I've consumed way too much alcohol and am in imminent danger of parting company with my lunch.
You know the score, you've had a wee dram or three and you stagger up the stairs with the intention of going to sleep. You pull back the duvet and climb into bed and just as you turn out the light you realise that you've exactly seven minutes and thirty seconds to get to sleep or you'll end up clinging on to the porcelein all night...
Two minutes later the room starts to move. It's almost imperceptable at first, but you feel like you're being turned on your horizontal axis. "Focus on something" says a dark recess of your brain, so you turn on the bedside light and try to fix your eyes on it. Problem is, it's moving too. Your eyes track the bulb, but never quite manage to keep it in focus, you can feel the bed moving like a rollercoaster on that awful moment before you're plunged down a steep slope...
But you felt okay in the pub, and that last glass of brandy seemed to be well within your capabilities.
Yep, that's how I've ended many an xmas eve.
