Lacey was having some behavioural issues this summer. To put it bluntly, she was going after dogs at the dog park. I have no idea what brought it on but I don't feel like I can trust her around other dogs.
We still go to the dog park but we go when it isn't busy (I consider 5 cars in the park busy - our parks are not well utilized) and when we are there, I usually just avoid everyone else. Most of the time this isn't a problem, but we are occasionally surprised by someone. In those cases, I need to make sure I can grab Lacey quickly.
You may have noticed a second collar around her neck lately... This is actually a very cool leash from Ruffwear that velcro's around her neck. She basically carries a leash everywhere she goes so I can have control when I need it. We've had to use it a few times, and each time it has worked like a charm.