During a huge demonstration in Tahrir Square commemorating the revolution's first anniversary last month, hecklers continually surrounded a marquee featuring Brotherhood speakers.
John Major was credited with dealing with hecklers well when he stood on his soapbox to shout above a Luton crowd during the 1992 general election campaign.
The Greens deserve some success, in part because of the way they have transformed themselves from hecklers standing on the sidelines of mainstream politics into a machine for representing Germany's clean-shaven middle class.