I once asked a classmate whose mother is Irish, "So, do you know how to speak Irish?".
She gave me a funny look & said, "They speak English".
Cripes! I had mixed up the Welsh & Irish!
That moment has always been one I wish had never happened.
A childhood belief about foreign languages

others believed things like this
- I used to think all people with green eyes were IrishAnon
- When i heard about Irish Bombers on the news during the 70s i used to think that planes were dropping bombs.— Moose
- Until I was well along in years I always thought our family was Irish because my dads birthday was March 17th— Gladys
- I thought Marco Polo was Irish.
Mark O'Polo.— Claire Sparkes - I used to believe that my dog could speak English, but he just didn't feel like it.— Mariah
- I remember thinking that non-English speakers were much smarter because they could speak "so much faster." Anon