According to the Rialto Theater's "Moosebill" for "Downhill: The Musical" (a special table of contents insert created for the DVD box set "Rocky and Bullwinkle & Friends, The Third Season"), Boris was educated in the Pottsylvania public schools before taking a scoundrelship to U.S.C. (the University of Safe Cracking), from which he graduated magna cum louse. He has a cast-iron stomach; and because of it was one of only three survivors of the ruling clique of Pottsylvania, the other two being his superiors Fearless Leader and Mister Big. Boris enjoys light reading; his favorite book is an anthology of fiendish plans called the "Fireside Crook Book". He is also a charter member of the Van Gogh Society, a Pottsylvanian club whose members collect human ears.