An Epigram of Martial
Amissum non flet cum sola est Gellia patrem,
si quis adest, iussae prosiliunt lacrimae.
non luget quisquis laudari, Gellia, quaerit;
ille dolet vere qui sine teste dolet.In private she mourns not the late-lamented;
If someone’s by her tears leap forth on call.
Sorrow, my dear, is not so easily rented.
They are true tears that without witness fall.
This is Martial 1.33, not precisely a joke, but neatly translated by J. V. Cunningham. The meter is elegiac couplets.