I am happy to oblige, Yakovlevich!
By the way, in Russia, if you have a respectable friend of yours,
who is older than 40, to whom you are willing to show your special respect and friendship, but in strictly unofficial form -- you may call him by patronymic only, without his first name.
For example, Vladimir Ilyich Lenin, Leader of the World's Proletariat, in unofficial circumstances had been addressed as Ilyich, out of the extreme respect towards him from his comrades and the working class.
But one should first be assured that the person in question would give his permition, or at least would not object to be called by patronymic only.
For example, Iosif Vissarionovich Stalin, prefered to be called simply: "Tovarisch Stalin", and no other way! I believe you know that "tovarisch" means "comrade".
But if your friend is, say, about 20-years-old, to call him only by patronymic would sound like a joke or mockery.
Meanwhile, I would like to invite you kindly to visit a few webpages of my two websites, if you haven't visited them before:
http://www.great-victory1945.ru/index.htm
http://www.russian-victories.ru/russians.htm
http://www.russian-victories.ru/index.htm
http://www.great-victory1945.ru/victory.htm
Warmest regards from Russia!
Michael