My working theories:
- Leaky plumbing - it’s not necessarily wee
- Cascading shuffle-back. One person drops a little, the next stands further back to avoid stepping in it, and so on, until maximum pee distance is reached, which varies by individual. The further out, the less accurate, and the more annoyed at adopting a silly stance, thus the less balanced the equation. Eventually, there will be a puddle.
