I get almost all the references here and it’s crackin’ me up!
I can’t hear “surely” without making the obligatory Airplane reference. I also can’t hear or say “it’s not unusual” without busting out with Tom Jones whilst doing the Carlton dance.
Oh, and I heard the despair joke slightly different, with the punchline being that two guys show up, one with an eclair ond the other with a pear and they say “I’m fuckin’ dis custard and I’m deep in dis pear”.