A funfair has arrived in town (complete with hot dog/burger stalls) and purely by chance Mr O has had all his onions nicked from his allotment. Pure coincidence?
I agree with the sympathy and your annoyance with the Turds, but there is a funny side to this.
Mrs O's Son: What vegetable makes your eyes water?
Mrs O's OH: One of my white onions, Son.
Mrs O's Son: You`ve obviously never been hit in the nads with an eggplant then Dad!
Thanks daisya - you inadvertent (I'll give you the befefit of the doubt) double entendre didn't exactly make grumpy git laugh, but the corners of his mouth moved slightly