Greer was dismissed for a challenge on Charlton's Deon Burton which Wilson says was out of character.
After some twisting and turning the third scrum also imploded and Deon Carstens was sin-binned for his involvement.
He twice denied Addicks striker Nicky Forster and also superbly saved shots from Deon Burton and Nicky Bailey.
Deon Kotze (33) and Ian van Zyl (31) hit late runs for Namibia to edge them towards their total.
Some players who would be affected by a rule change include Lance Klusener, Nicky Boje, Hylton Ackerman, Jermaine Lawson and Deon Kruis.
"You have to go hard on teams, " veteran safety Deon Grant said.
Yorkshire skipper Darren Gough and last man Deon Kruis hit a six apiece as the Tykes compiled 457, a lead of 230.
Deon Carstens was penalised for bringing it down, allowing Geraghty to notch his third penalty, which was instantly cancelled out by another from Hougaard.
Deon Burton made a heroic return for Derby County, scoring the winning goal as the Rams came from behind to beat Sheffield United at Pride Park.
Deon Bird's score 10 minutes from time stole the win and must have left the Reds wondering what they have to do to take home three points.
In the 74th minute, Deon Burton was given his first taste of action in a Rams shirt this season, at the expense of former Blades striker Lee Morris.
They were five short of Sussex's 67 against Hampshire in 2004 when Deon Kruis joined Adil Rashid and put on 23 to spare their team any further embarrassment.
But first-innings centurion Blackwell snuffed out any remaining danger with the help of Peter Trego, the pair adding 70 together before Trego hit Rashid to Deon Kruis at mid-off.
Had they found a way past the obdurate defence of Matthew Hoggard or Deon Kruis, they would have moved top of Division One of the County Championship with three matches remaining.
Detective Angelica Salmeron said she stopped Deon Dennis because he was drinking alcohol out of a plastic cup and had an open bottle of Hennessy cognac on the street with him.
Sammut added the goal and three minutes later Hull extended their lead as Deon Bird broke clear, passed to sub Andrew Hick who drew last man Reilly and sent David Maiden over.
Flood restored England's three-point lead with a penalty in front of the posts when Deon Stegmann, playing at blind-side flanker for the injured Burger, was caught offside following a bull-dozing Sheridan run.
However, three wickets in four balls from Deon Kruis left the innings in tatters, and when spin prodigy Adil Rashid took the sixth wicket it ensured Yorkshire would not be relegated if they win the match.
BBC: SPORT | Cricket | Counties | Lehmann marathon lifts Yorkshire
Charlton's best chance in a fairly tame first half came on the half-hour mark when Nicky Forster's flick-on was met by Deon Burton's ferocious volley from a tight angle but Shane Higgs made a reflex save to turn it past the post.
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