Stuff happens. But you have a plan either way it works out.
I was told that this is like capturing an animal. You lure them by making it so that they walk into the trap themselves while you're far away. They may come close to the bait several times but then sudden little moves on your part toward them may spook them and cause them to retreat back into the bushes a bit. But as you pull away, they may take to the bait hopefully again, because you've made it so alluring, and they walk into the cage. The delicious bait keeps them focused on their meal and they don't realize that they're inside the trap as you slowly and quietly start to close the door so as not to spook them. Now they don't want to leave because they're enjoying being in the trap, and only then is the door closed, because they're definitely back.
