Weird fan behavior

[AJW]

I heard this on the radio Bouncy Bouncy and thought it was strangely charming being much more fun and less full of sectarian tension then most old firm songs.
I also like the image of middle aged Glasgow hard men bouncing up and down like little kids.
I remember going to St Mary’s as away fans and stamping our feet in unison making the old wooden floor vibrate and the stand shake which was strangely exhilarating.
So what communal fan behavior is unique to your fans?