Re: the guarding of your tripod legs.
Have you ever wondered why the Disney Photo Pass photographers have a light under their tripod? You see them take their scanner and stick it under there; but, it's a barcode reader and doesn't need the light...
The light is there so it illuminates the tripod's legs.
Once I figured this out and started putting a light under my tripod when I get it set up for fireworks, the number of times I've been bumped has dropped dramatically.
Depending on where I set up the tripod, I've also stuck some of the cheap LED finger lights (
http://www.amazon.com/LED-Finger-Li...&qid=1451314277&sr=8-5&keywords=finger+lights) on the legs. One at the bottom shining up and one at the top shinning down on each leg, so people see where the start and stop. After you are done using them, they make good bribes to any kids that are around you to help guard the tripod.