Stalin attended a Russian Orthodox seminary but dropped out. His mother lived to see him gain absolute power in the Soviet Union and become one of the world’s movers and shakers, yet she still considered him a failure because he failed to complete his seminary coursework.
I recall my HS History teacher saying that Papa Joe was kicked out of Seminary. Someone reached for the piece/ loaf of bread by his plate and Stalin stuck a knife through his hand into the table.
Although a quick web search shows that Stalin did throw a knife at his father, in defense of his mother. But nothing about the Seminary. (I like the seminary knifing story better!)