I want something strange: is there a terminal command in Ubuntu so that lines continuously run across the terminal window?

Question

Command line

Hello!
Now strange people will come to me for negotiations, I would like to catch up with the fog and so that some lines run continuously in the Ubuntu terminal window. Like in films about hackers :)
ping ya.runot very impressive.
Does anyone know how to load the terminal safely and effectively for an uninitiated observer for an hour and a half?
Thanks in advance!

Answer 1

tcpdump -i eth0 -v
+ enable youtube video for example.

Answer 2

Here's what I found:
link