Inspired by 'Food boring people about a dog or something I was wondering what you have shoo'd away in your lifetime and how effective was it?

Dog - Loads, easy.
Cats - Loads, easy, bit flinchy.
Pigeons - Loads, loud noise or stamp does the trick
Peacock - One, tricky, raised up a bit. I felt scared.
Goats - Two, would not back down. Well played goats.

Others to follow.