EDITED SPECIALLY FOR LEESIE
Cameron & Clegg decide on a strategy to appeal to disaffected voters. So they don 'civvies' and decide to pop into a 'normal' pub for a drink with the locals. For good measure they take David Cameron's spaniel with them to demonstrate their 'everyman' credentials.
While they order 2 pints of bitter shandy, a chap walks into the bar and, on seeing the dog, comes up and looks at its back end. Then he wanders off.
Standing, nodding to the non-plussed regulars, C & C notice another chap walk in. Again he goes up to the dog and has a good look at its rear end.
Cameron & Clegg are slightly confused by this but decide it must be 'normal' behaviour. When the barman appears Cameron asks if this is a sort of 'blokish custom'.
'No' says the barman. 'Its just that they have heard that there is a dog in the bar with 2 arseholes'.