The Pun (n.) is the lowest form of of verbal joke, probably because it is the 'cheapest' and can be made with the least trouble.
A Pun (n.) gave antiquity its happiest dream-reading: Alexander, stalled before Tyre, dreamt of a satyr dancing on his shield — 'sa Tyros', Tyre is thine — and pressed on to take the city.
A Pun (n.) on names is childish naughtiness, indulged as retribution by someone whose own name has suffered feeble witticisms countless times.
A Pun (n.) is the hunter's footpath of thought, used when floods have closed the main roads.
A Pun (n.) can rebuke an emperor: told all Italians dance badly, an Italian lady answered Bonaparte 'Not all, but a good part' — buona parte.
The Pun (n.) passes for the lowest kind of joke because it is the cheapest, asking only that two words vaguely recall each other.