"Yes, Grandma, I understand," he said with mock contriteness before he couldn't hold back his own laughter. Despite his light-hearted banter, he's being diligent in getting every tiny piece of glass around. Who knows when her floor was last this clean.

Then again, it might help that she could easily track him down and chew him out if she stepped on a shard later.

"I think that's all of it."