If I wanted to hunt leopards, staking out a gazelle by a watering hole would be one way to draw one in.
If I wanted to hunt I.T. professionals, this is how I would do it. Large cauldrons of coffee and a table full of donuts and scones. They will collect in large numbers as soon as the gate is open and the bait will make make them slow to escape.
I am in no way immune to this technique, and could have been picked off shortly after this picture was taken.
For every man there exists a bait which he cannot resist swallowing.