Maybe you should talk about window cleaning for once and stop trying to be a Boffin.
Come on Ewan lets hear about the time you dragged your hose through a custys dog-doo, the time it rained just after you scrimmed the first window on a house, the way the strange window cleaner in a beat-up old escort was giving you the evils, how a custy asked you if you were going to dry the water drops off the glass.
Lets hear you talk about 'hands on'.