Madam, - I once considered the nit-picking of grammar and punctuation a sure sign of the presence of a compulsive disorder within a person.
However, the importance of a full stop rather than a comma becomes all too apparent when signs on the London Underground, pictured in the "Weekend Review" (April 3rd), inform passengers that if they see a dubious package - "Don't touch, check with other passengers, inform station staff or call 999." All of a sudden, a sign intended to promote vigilance actually encourages negligence. Let us just hope that the commuters of London are as ignorant of punctuation as their Metropolitan Police. - Yours, etc.,
ROBBIE ROULSTON, Ardmeen Park, Blackrock, Co Dublin.