First off, you put a lot of work into it and it looks great! Second, Safety, Safety, Safety First!!! That means you can't let kids run inside there for both their sake and the sake of your insurance premiums! To help combat that, I suggest that you make a nice BIG "Rules for the Haunt" sign on a sheet of plywood so everyone can see it and make sure it lets the parents/guardians know that THEY are responsible for making little Bobby and Suzie behave in a reasonable manner. State the maximum number of people allowed in at a time to maximize the amount of fun each group has. Thank everyone for understanding the wait time but that it's to ensure they each get the best experience possible. You may want to add additional rules like children must hold an adults hand the entire time to make sure the adult doesn't get overwhelmed (basically so the kid doesn't run, climb the walls, props, etc.) along with your other standard rules like no smoking, profanity, whatever else you don't want to deal with the hazards of. I know you don't want to put up a gate, but a velvet cord of some type is the only way to get some peoples attention these days and it adds a little class and makes the event feel that much more special. I know as a child I knew that if a place had a hostess and a please wait to be seated sign, I had better be on my best behavior in my parents eyes. There's nothing wrong with a little theatrics, especially on Halloween. It's supposed to be a special night.