Grandma Who? Kid Funny

Today we met Poppi, Margie and Grandma Ruth at Harry's Hofbrau in San Mateo. We were celebrating Margie's belated birthday and exchanging cars. Poppi graciously let us borrow his Civic while our Durango was getting the body work done. On the drive up there I was giving the kids the usual spiel: 

Me: OK, guys, we are going to a restaurant I want you two on your best behavior. 

Nathan: OK mom. No hitting. 

Me: Yes, no hitting. We are meeting Auntie Margie, Poppi and Grandma Ruth. 

Nathan: No, mommy. Grandma not Ruth. Grandma old.