Set your MOTD to display a Linux - Jurassic Park Hybrid MOTD.
It will tell you how much time has passed since the last Dino attack at the Jurassic Theme Park!
To install for just your user run the following command
$ ./install_user.sh
To install for the system run the following command NOTE: Must run with Sudo or Root.
$ sudo ./install_system.sh
or
# ./install_system.sh
Last login: Wed Jul 15 16:38:18 on ttys003
Jurassic Park, System Security Interface release 2 (Jurassic World)
Version 15.0.0-10.11-ec
Time since last Dinosaur Attack:
8068d 22h 44m 35s
user@localhost: ~$