This happened at my Great Uncle's funeral and we still give my SIL a hard time about it.
We were sitting in a pew farther back in the church (thankfully), it was my DD, myself, my DB and his wife and then my Mom. They had a intern Pastor who did part of the service and when he started reading the 23rd Psalm my SIL put her hands over her face. Pretty soon she put her head down and her shoulders were just shaking. My DB put his hand on her shoulder and tried to shush her. I thought to myself, "wow, I didn't realize she was the close to to my Great Uncle". Well, it didn't take long before I realized she was laughing, NOT crying. The tears were just running down her face and that got my DD, myself and DB going as well. Afterwards we found out what had set her off... when the intern Pastor started reading it sounded like the waiters in a Christmas Story, the ones on Christmas Day who sing fra, ra ra ra ra, ra ra ra ra and she couldn't contain herself.
We were sitting in a pew farther back in the church (thankfully), it was my DD, myself, my DB and his wife and then my Mom. They had a intern Pastor who did part of the service and when he started reading the 23rd Psalm my SIL put her hands over her face. Pretty soon she put her head down and her shoulders were just shaking. My DB put his hand on her shoulder and tried to shush her. I thought to myself, "wow, I didn't realize she was the close to to my Great Uncle". Well, it didn't take long before I realized she was laughing, NOT crying. The tears were just running down her face and that got my DD, myself and DB going as well. Afterwards we found out what had set her off... when the intern Pastor started reading it sounded like the waiters in a Christmas Story, the ones on Christmas Day who sing fra, ra ra ra ra, ra ra ra ra and she couldn't contain herself.
. I thought I heard wrong until I saw the look on my mother's face. My friends told me they were bawling and laughing at the same time.

Young New Preacher came over to visit before the big day, interviewed us about Dad, and we took that opportunity to kinda fill him in on some of the family details (the fact that my dad was not a real stand-up guy, hated outdoor stuff, was a womanizer, etc)so he wouldn't say something that makes him look like an idiot
He went on about what a great guy Dad was, how much he loved his home & family(not!), but when he started gushing about how Dad just "loved hunting & fishing" my brother leaned forward and whispered,"yeah, fishing for money & hunting some tail". Well, then my three sisters started giggling, some of the bystanders start giggling, and one woman in the crowd who sees us all hunched over barely containing ourselves bursts out in wail that would wake the dead. That just made us laugh harder.
It was good we did that, tho', because I have missed my Dad terribly and I have not laughed about him since that day! 
