It's important to protect yourself and your pets from threats while on walks. You never know what you'll encounter strolling through an area with off-leash dogs or wild animals, and it's important to think about protection.
The idea of pepper spray was recommended in the comments of a past dealing with aggressive dogs post, and in Dean Koontz's A Big Little Life: A Memoir of a Joyful Dog, he mentions the same thing. After his dog Trixie was bitten by a loose dog, he kept a bottle saying it "discourages any dog mid-charge but does no permanent damage." What's your take on packing a bottle and using it?