". ▁Despite ▁his ▁ar rog ance ▁being ▁encourag ed ▁by ▁his ▁status ▁as ▁the ▁bank ▁manager ▁( h aving ▁started ▁as ▁a ▁cl erk ▁and ▁working ▁his ▁way ▁up ▁to ▁assistant ▁chief ▁cl erk , ▁chief ▁cl erk ▁and ▁eventually ▁manager ), ▁Main w aring ▁reve als ▁in ▁the ▁same ▁episode ▁that ▁he ▁cons iders ▁it ▁a ▁mere ▁" t in pot ▁branch " ▁and ▁his ▁career ▁is ▁at ▁a ▁seem ingly ▁permanent ▁stand st ill , ▁as ▁revealed ▁in ▁A . ▁Wilson ▁( Manager )? : ▁whenever ▁he ▁applies ▁for ▁prom ot ions ▁he ▁is ▁always ▁turned ▁down ▁due ▁to ▁his ▁un im press ive ▁background . ▁Main w aring ' s ▁pom pos ity ▁and ▁sn ob ber y ▁work ▁against ▁him , ▁as ▁he ▁is ▁frequently ▁dependent ▁on ▁those ▁in ▁the ▁Home ▁Guard ▁that ▁he ▁cons iders ▁beneath ▁him , ▁such ▁as ▁Serge ant ▁Wilson , ▁his ▁chief ▁cl erk ▁at ▁the ▁bank ▁with ▁whom ▁he ▁shares ▁an ▁ant agon istic ▁friendship ▁and ▁Private ▁Walker , ▁a ▁black - mark ete er ▁who ▁interrupt s ▁during ▁Main w aring ' s ▁lect ures ▁with ▁a ▁qu ip ▁or ▁a ▁s ly ▁revel ation ▁that ▁Main w aring ▁is ▁benef iting ▁from ▁under hand ▁de als . ▁Main w aring ▁is ▁particularly ▁je alous ▁of ▁Wilson , ▁who ▁is ▁more ▁relax ed ▁and ▁char ming ▁and ▁poss esses ▁combat ▁experience ▁that ▁Main w aring ▁does ▁not ▁and ▁takes ▁every ▁opportunity ▁to ▁rem ind ▁his ▁ser ge ant ▁who ▁is ▁the ▁senior