I was told to get in the trenches and cut back on the comedy godzillas by a reader recently so I made a trip to the the Invisible Dot's new regular Saturday Night Show last night. I'm not sure if this really counts as the trenches though. It's a swish, industrial room a spit from King's Cross station which attracts the coolest of comedy crowds (think Hacienda Club just before acid house kicked in but cosier) thanks to ID's skilful booking policy.