Sitting at my desk,

Typing up some notes,

When out came the blackbird,

And poo-pooed on our coats.

We thought it rather funny,

And it didn't half cause a stir,

Especially when young Hazel,

Said that her's was fur.

The moral of the story,

Is plain for all to see,

Blackbird solids are dangerous,

But worse is cat's wee-wee.

Oh dear.