Regarding Liverpool's equalising goal that was ruled "offside" - I can't stand this interpretation of offside. It should be the feet, which were easily onside in this incident, and not the upperbody that decide whether someone is onside or not.
Few things I loved more than watching Thierry Henry (and just players in general) bend his run to break the offside trap and get in behind all those years ago, yet they'd virtually all have been ruled out if this bullshit was a thing back then.