crap

oh my gosh i am sooooooooo embarrassed!!!!!!!! my grandfather owned a business called keystone but i knew nothing about what he did there. so in my history class we were talking about economics and my teacher mentioned keystone and said it was huge! and i am like woah!!! so after class i told him my granddad owned a bit of it and he was like wow that is so very cool and u cud see he was genuinely excited about it. now i find out that he had made his own business called keystone and it is not the one we talked about in history. somehow i have to tell him that i was completely wron and i am nothing cool at all. idk how to do that. HELPME!!!