I've just spotted an interesting story linked by Tim Roll-Pickering. It's from Quaequam's blog on Liberati, and appears to be by a Lib Dem who's disgusted by his own party's campaigning tactics, so much so that he stayed home rather than help out.
"I draw the line at dishonesty, I dislike ambulance chasing and I detest scaremongering. The photos of Ben Abbotts “cleaning up” graffiti that is then left is a disgrace. It is similarly a disgrace to go around taking photographs of every single piece of litter on every single street in the constituency in order to present a misleading picture of a constituency drowning in grot, as is now a standard by-election tactic."
It's good to see at least some of the Lib Dems have issues with what they do. The comments in the post make for amusing reading. There's almost a brick by brick analysis of the graffiti pictures.