Madam, - As a granny I am very aware of the risk to my grandson in the back of my car. There is always the hope that drivers behind me in traffic will take some heed of the "Baby on Board" notice (as Don Heenan, July 3rd, obviously did) and keep their distance. Aggressive driving is becoming far too prevalent as a result of gridlock and impatience. Yours, etc.,
MARGARET McKENNA, Sutton Park, Sutton, Dublin 13.