Here's mine
Back when I was around 7 I got a gameboy and pokemon blue from my grandparents. They bought it from a fleamarket, and I was really happy to get one. The problem was that it was in English haha (I'm German) So I played Pokemon Blue in English and I kept saying the English names when I was talking about pokemon with friends and stuff. It was useful too, since it really helped me to learn English.
(Thanks Grandparents for giving me my first handheld and my first pokemon game!)