Pepperspray has several different methods of discharge: stream, spray or fog. Each has it's own benefits. I carry the kind that discharges in a stream, because I'm outside at work, and don't want to have to worry about "overspray" when I use it on one animal. Spray offers a shotgun approach, with less need for precise aim and more chance of overspray, while fog is good for clearing a crowd, as long as you check the wind first. Most times the dog only needs to get a little whiff of the stuff for them to decide that you don't smell good enough to eat. Don't limit your other options.