MERTHYR TYDFIL, UNITED KINGDOM - MARCH 19:   A man waiting for a bus smokes a cigarette underneath a billboard advertising the impending smoking ban on March 19, 2007 in Merthyr Tydfil, Wales. Smoking in all public places will be banned in Wales from April 2, 2007. The ban - which also comes into effect on April 30, 2007 in Northern Ireland and on July 1, 2007 in England - follows similar bans already introduced in Scotland and the Republic of Ireland. Getty Images logo Getty Images 63 months ago

MERTHYR TYDFIL, UNITED KINGDOM - MARCH 19: A man waiting for a bus smokes a cigarette underneath a billboard advertising the impending smoking ban on March 19, 2007 in Merthyr Tydfil, Wales. Smoking in all public places will be banned in Wales from April 2, 2007. The ban - which also comes into effect on April 30, 2007 in Northern Ireland and on July 1, 2007 in England - follows similar bans already introduced in Scotland and the Republic of Ireland.