It shouldn't really be all over the floor!
Being a man, I can only vouch for this problem being a male issue, however it wouldn't surprise me if some adventurous female decided that she'd like to conquer the final frontier and pee standing up.
Of a night out this problem seems to reach pandemic levels.
It is probably not helped by the fact that after a few drinks and the first pee of the night your bladder cannot hold liquid form more then 5 minutes before the next army of pee is ready to march into the valley of the white bowl.
I can almost gloss over the fact this happens, as from personal experience, intoxication does not improve aim even if there are two toilets to aim at. But in an office, on a weekday, at 11 o'clock!
The thing I never get is, it's never a small amount of pee. The original occupant of the cubicle didn't stop once he realised his mistake but continued to water the floor to see what would grow.
So I have only two words for these people, SIT DOWN!