Now, normally, I find such pranks disgusting and childish, but, Robin, I am still laughing as I type!

Liz... pigeons are rats with wings. I had to clean out pigeon nests and droppings in the eaves and trim of old houses as a young lad new to the renovation and construction trades. The shit and the lice made me, you know....

And, when it was windy, I had to clean the sides and windows of old houses until I became accustomed to the vile job. Ever try climbing down a slippery ladder?