Hoist by your own dog end?

Last year, the Department of Environment, Food and Rural Affairs (Defra) introduced on-the-spot fines to anyone caught dropping a cigarette end as part of a campaign for cleaner neighbourhoods. However, according to Westminster city council, it seems that staff at Defra headquarters is one of the worst government departments for discarded dog ends.

Not much of a story I know but a surely case of "physician heal thyself!"