Just stop licking pigeons

Sorry, last blog was a bit crap.
Don't you love it when people repeat crap they hear without thinking about it?
I used to share a house with a man who was a master of this. Once we were discussing London pigeons and he said that he hated them.
I have nothing against pigeons.
He said they were bad because they carried diseases.
Now, I don't know about you, but I certainly don't know anyone, or know anyone who knows anyone or have even heard an urban legend about anyone who has caught a disease from a pigeon.
What would you have to do to catch a disease from a pigeon? Eat it? Kiss it? Lick it?
I just thought I'd share that little nugget of nonsense.