Macgyver Timed Door Opener

the first thing you will need is your trusty Swiss Army Knife. next you will need - a good length of para cord - a weight ( bucket, brick etc... ) - some matches - your trusty role of duct tape - apiece of wire - a little bit of time and your ever so important Macgyver themed music playing in the back ground

Find a brick, or a bucket and tie a long piece of string to it.

Locate the door you want to open

Find a place on the ceiling that you can run a loop of string

Tie a loop not in the middle of the string that's on the weight

Take the end of your first cord and wrap it around the doorknob 5 times and put the brick threw the loop on the ceiling

Find a loose screw in a wall or table, pull the screw out a little and wrap the end of some string around it then use your Swiss Army knife to put the screw back in

Take that string you just wrapped, and tie it very tight to the loop tied to the brick

Take your wire and bend it in the shape of an Double L. Then bend the end and tie your fuse( string ) to it. Finally tape a few matches to the end of the wire

Tape the fuse assembally under the string tied to the loop

Open the door just enough so that the bolt clears the hole

Light the bottom of the fuse and wait