There he was, standing in front of the pool chemicals with a glazed look on his face. I couldn't resist.
"Do you have a test kit?", I sheepishly inquired.
"No, need to get one.", he replied.
"A good test kit will save you hundreds of dollars in product!", I beamed with pride over my knowledge, "Check out Trouble Free Pool on the internet."
"Trouble Free Pool? I'll do that, thanks", he said with a smile spreading across his face.