BEHAVIOR-EXAMPLES

For immortals

1.  How to create a werewolf.
2.  How to simulate a cave in.
3.  How to make a drawbridge come down between 10:00 AM and 11:00 AM, but
    remain up for the rest of the day.
4.  How to create a frog that can turn into a princess.
5.  How to create stone statues that come to life when intruders unlock a
    gate.

See BEHAVIOR-EXAMPLES-1 to learn how to do #1, and so on for the rest.