A classic piece of Peter Cook/Dudley Moore humour from their Broadway show "Good Evening". There'll never be another restaurant like The Frog and Peach
... thank goodness. The skit is lengthy, so it takes a minute or so to load up and start playing, but it's well worth the wait.
P.S. If you're prone to snorting beverages up your nose or spraying 'em all over your computer, I'd suggest you move away from the mug/glass/bottle/can before listening.