Hecklers, Haircuts and an £80 pint

As the political response to the floods continues to make headlines, there's plenty going on behind the scenes on the general election campaign trail.
How are the leaders responding to hecklers, why has a pint of lager in one Midlands establishment shot up to £80 and what of some of the, er, interesting language being deployed to make a political point?
Kate McCann is sent to Coventry with the Conservative campaign, Tom Rayner is on the Labour beat near Glasgow while Jon Craig is in nostalgic mood in Westminster as he recalls some classic campaign moments.