campaignlive.co.uk, Friday, 02 April 2010 12:00AM
Tell us something we don't know, you might say. However, a tad controversially, the "ad" purports to be from Transport for London. Diary suspects TfL staff will be keeping a special eye out in future for a shifty-looking commuter armed with a paste bucket and brush.
This article was first published on campaignlive.co.uk