Having sorted the bizness admin
(VAT, bank rec's etc) I thought to tackle an errant spotlight on the lighting rig in the office ...
Up the ladder, check the connection, down the ladder, switch on, no light, up the ladder change the bulb, down the ladder, switch on, no light, up the ladder, check the connections, down the ladder, switch on, no light, up the ladder, check the connections again, down the ladder, Yay! Light!
After 5 minutes, light goes out!
Up the ladder Feck the ladder, I grab a ruler and stretch up and hit the bulb ... Light comes on!