If there's one thing that annoy's me about the design of the average bass combo tp the average guitar combo, is the top of the amp is normamly flat, no knobs, no switched, nothing. This always makes it prone to people using it as an extra table in the pub to put thier beer on. Obviously when I'm not playing, either when sharing a gig, or just going to the bar/loo, I'm not always able to stay by my gear the entire night. As soon as I turn my back, there's 5 pints racked up on it, leaving disgusting ring's and spillage marks all over it. The only way roub=nd it I found, it to lay my coat or similar on it, but this usually ends up chucked on the floor. Does anyone else have this problem, what do you do about it, short of outbursts of strong language.?