Mr G recently visited the Shibboleth 'installation' at the Tate Modern gallery in London.
Not usually a fan of the arty 'i-word' (to Mr G, 'installation' means a new back boiler), he found himself hugely enjoying this zig-zagging fissure in the floor of the vast turbine hall.
He says: 'The brochure spoke of deep meanings connected to notions of boundaries, exclusion, imperialism and goodness-knows-what.
' Whatever! I simply relished the way it broke down barriers between complete strangers - everyone was talking. Good crack.'