I have just had a longer than normal session in the pub at lunchtime and was 'making room' for more beer by using the gents.
I've had a few late nights of late and was feeling knackered so I found myself leaning forward as I peed with my forehead against the wall.
As I approached the end of doing my business I lent back but very nearly lost my balance and staggered backwards sending a jet of piss outside the target zone and onto the wall. Fortunately no-one was around at the time.
Imagine a sketch where I'd actually fallen over with me spraying all those around me. Hmm, the aftermath may be a scene to send to Casualty.