The BBC Scotland sketch show poked fun at a huge variety of figures, from Sir Alex Ferguson to Tommy Burns to Brendan Rodgers. There was barely a Scottish football figure it didn’t impersonate over that time, but perhaps the most famous recurring character was Frank McAvennie. And the ex-Celtic man has discussed his character five years on from the show being discontinued – and one thing he regrets not doing. Former Celtic favourite Frank McAvennie on his Only an Excuse catchphraseEveryone who saw the OAE? Beginning his career at junior side Johnstone Burgh, McAvennie went on to hit the 100 appearance mark at three different clubs.