I did this with otters one time.... ....and didnt log in for 3 days.
My PC is a monster so when I logged in and was HARD lagging, i knew something was wrong. Walked around the corner to a sea of otters spilling out or the corner I'd caged them in. Then I DCd and starting laughing my ass off at the otter wave I had created lol
That reminds me of the totally-intentional-definitely-not-a-bug Beaverpocalypse that happened in the Sunken Forest during the Extinction launch.