You're a Grandma and you're strong!

So my student comment for the first week of school is..."you're a grandma and you're strong!"
LOL :)
My students wanted to know if I was married and if I had children, so I told them I have two sons who are married and I have two grandchildren.
At the end of the day I was stacking chairs and picked up a tall stack of chairs. One boy, who soooo reminds me of Joshua when he was that age said, "You're a grandma and you're strong!"
I had to laugh and my TA, Chenda, also giggled.