In the dark!!
On my way home from work just, I turned into a dark lane, flicked the ligting stalk to put my main beam on and ALL the lights went out - and I mean ALL!! No sidelights, dipped beam, main beam unless I hold the main beam flash on, no dash lights, no number plate lights - nothing. (you probably get my drift by now...) The only lights that do work are the indicators, hazards and brake lights.
Now by my (and the manuals) reckoning, about 4 fuses would have needed to blow at the same time for that to happen, so has anyone got any other ideas as to what might be wrong??
There's always one - and it's usually me!