We used to do this stuff on text MUDs. People would make triggers to do certain things based upon text the MUD sent them. But a lot of people failed to properly "anchor" their triggers (you anchored them with '^' like in the regex world).
So you would send people a message with a series of commands to try to exploit commonly used triggers in order to make people give you all their items.
Ahh, fond memories of writing code and triggers for MUDs. Frustrating at times but helped for me to learn programing in an interactive and iterative manner.
So you would send people a message with a series of commands to try to exploit commonly used triggers in order to make people give you all their items.