I was walking into the lab with 'Encyclopedia of Diving' in my arms

SY:"It's fun to dive, you know?"
Me:"So I guess you dive too?"
SY:"Yah.. I was so enthu about it that time.."
Me:"Great, I've found another dive buddy... Let's go diving together"
SY:"Sure!"

Eliza:"Sorry? What were you guys talking about?"
Me:"Diving?"
Eliza:"Oh... I thought you guys wanna die together"

......................

Either we had speech problem or she had hearing problem