This is the famous "Dad at Comedy Barn" video. 24 million views on YouTube, just to hear a man laugh. If this is your first time viewing it, don't give up in the first two minutes (and the red advertising box closes via the small "x" in its corner). And note it even ends with a refrain of "Bohemian Rhapsody."
Reposted from 2009. And again from 2013 because I needed a laugh tonight.