The damn pushfit outflow pipe under the kitchen sink got knocked the other day (probably by me) and when I emptied the washing up bowl it all evacuated straight out into the under-sink cupboard. FUCK. THAT. Take regular washing bowl water and add it to u-bend water and buerrrke, first thing in the morning too.
Fixed it and cleaned it before anyone else noticed though because I’m a pure hero (I didn’t want a kitchen full of the smell of canal decay)