En Inglés para que todos entiendan la broma :

A big women in a ball, is invited to danse with an unknow. Suddently ! A fart escape her. Embarrassed, she adresses to his partner :
-"Excuse me, this escaped me ! I hope this will be strictely between us ?"
-"Well No, I hope this will circulate"

Si pongo otras bromas, Yo los pondría en Español e Inglés