I'm not a LEO, so I'm not in one daily. When I am, I just grab one of the guys'. I don't need darts, so it doesn't matter.
You might want to post this in the police forum - you may need to wait 'til you have 100 posts on GT to do it (I think their forum has a minimum post requirement) - but you'll probably get more answers there (tho' they may be more humorous than helpful...).
BTW, I like your blog.
"Don't waste your time with explanations. People only hear what they want to hear." Paulo Coelho
"Oh bother," said Pooh, as he chambered another round.