Leicester played them in the first round in 97/98 and got the same treatment we did then as well.
20 years ago though so a lot might have not been aware. Well at least something's have changed like not being left on the coach in the high 30's all day.
I only got chucked down the stairs so count myself lucky....
I also ended up with a group chucking a bin through a shop window in order that we could arm ourselves with brooms and the like to run back down the hill to rescue our pals who were taking a serious hiding for no obvious reason after the game.
Bilbao was immense. Madrid has meant I have never visited the Spanish mainland since.