Lucky, lucky, lucky

A day or so after I last posted I put a load of laundry through and hung it out to dry.
On taking the laundry in and folding it ready to be put away I noticed that a gull had left a message on the sleeve of my sweatshirt.

So I really should be a lucky lady as I've shaken hands with a sweep and had a bird poo on my laundry. Or perhaps it is only lucky if you are actually wearing your jumper?

Why is there a connection between poo and luck?

Is it lucky when the Baby C poos in the bath? Perhaps? At least luckier than her pooing on me. Or my laundry.