I'm not sure if that counts but. I was on a bus with my mum and she was chatting with some elderly couple, and as the bus was crossing the bridge over the river elderly lady ask my mother " what an adorable kid you have I'm sure he is smart too, he must know the name of this river" I was three or four, maybe five and I knew precisely what the name of that river was, as I was about to say Neris I noticed something in my head some type of paralisis that prevented me from saying this word, so I said Nemunas instead. Elderly couple just chuckled and said "well , that's close enough" I spend rest of the ride listening geography lesson about rivers and lakes of my country. But I wasn't really listening, all I could think was "the hell was that in my head"