Ladder in heaven

Joe arrives at Heaven's gates and meets St Peter. He's about to go in when Peter says, 'Hey wait a minute, what about all the bad things you have said about people?'
Joe says,
'What do I have to do to get in?
St Peter is standing beside a huge ladder that goes into the sky. 'You need to climb that ladder and put a chalk mark on every rung, for every bad thing you have ever said about anyone. I'll tell you when to stop climbing.'
Joe starts climbing and putting chalk marks and calls out after 100 rungs, 'Is that enough?'
'No, keep going!'
Joe calls out after 400 rungs,'Is that enough?'
'No just keep going till I tell you to stop'
He gets to 4500 and stops for a rest but just as he does someone steps on is hand.
Who is it?

It's Eddie McGuire coming down for more chalk!

CP