Indeed IIRC, a few years back now (maybe 10 or so) didn't one plane land on the emergency runway when it was in use as a taxiway?

The taxi-ing plane ended up on the grass as the pilot sought evasive action, whilst the landing plane ended up in a bit of a mess from the aggressive braking action. No one was hurt but it could have been nasty.

I'm sure someone knows how to interrogate the AAIB database...