Try to land the tranq dart in his butt-area if you can. That way, if he runs, he'll pump the tranquilizer solution around his body faster and you wont have to chase him as far. Dont forget to tag him XD
But srsly, I have the same advice I give to everyone going on a date; cinnamon. Sprinkle a little in your shoes and your feet wont smell, shake the bottle and then squeeze it to get a blast of fine dust and aim that blast at your wet hair to infuse the scent without being gritty. It sounds demented but I promise you it works.
I am as direct as a T-Rex with 'roid rage and about as subtle. It isn't intended to cause upset, I just prefer to talk plain. There are plenty of other people here who do the nice, polite thing much better than I can. I'm what you'd call a "problem dinner guest."