You can extend the the time it takes hot-melt glue to set by slightly pre-warming both the surfaces to be joined with a heat gun. A heat gun also works great for stripping paint and other odd jobs. For example, you can use it to remove bumper stickers, defrost freezers, char-stain wood, dry wood for painting, burn weeds from cracks in sidewalks and patios, light charcoal, loosen rusted bolt nuts and bend certain plastic piping.
Designers recommend placing seats back at least twice the width of your screen, but also a few feet away from the back wall, so you can savor your surround sound. If you don’t want the rest of the house to shake, invest in heavy carpet and padding to absorb sounds. Don’t automatically assume basements are the best place for a home theater (they’re prone to flooding). But if the basement is your only option, don’t run wires or cables along the floor.