We need door bolts on quite a few of our rooms- bathrooms, ds2'sm ds3's probably ours. The bolts need to prevent ds1 getting into the room- so need to be high. What's the easiest way to do it? dh thought we could fix some sort of catch thing. We are both crap at DIY btw. Anyone know what we need. Someone I know has a number pad thing to stop the kids getting into her kitchen (2 out of 3 autistic)