After an upgraded graphics card my PC was sitting there still with the side off.
As some people have been know to do, celebrations ensued involving alcoholic beverages.
One 'sip' of wine went down the wrong hole and impulsive choking action propelled the last hamster cheeked mouthful all over the newly fitted NVidia monstrosity which was unprotected by said unfitted side panel.
PC monitor then joined in, in the spirit of the occasion by showing random squares of colour, surely influenced somehow by the red liquids soaking in to the graphics card surface mounted jiggery pokery.
To cut a long story short, after a quick towelling down with a dry tea-towel and fitting of the protective side panel plus a brief sigh of relief,... normal service was resumed.