>>4188228 (lb)

People do sometimes laugh at funerals. watch this video.

It's called the giggle loop. watch this video of Jeff trying to explain, really makes sense.

Coupling the giggle loop. BBC really funny video about people laughing at the wrong time. i.e. funeral.

https://www.youtube.com/watch?v=fS62Y_mMJcc

The giggle loop section starts at mark 1:40.

Hilarious!!!!