Bristol City boss Derek McInnes was pleased with the points but angry to lose two players to injury in the 2-1 win at Peterborough.
Sam Baldock struck twice in six second-half minutes to ensure Posh remain pointless at the foot of the Championship despite a late penalty consolation for Lee Tomlin.
But McInnes' chief concern was the lack of protection from referee Chris Sarginson after seeing some shocking challenges from the home side.
Midfielder Cole Skuse and defender Greg Cunningham were both stretchered off in leg braces.
Skuse received stud wounds on the stroke of half-time in a clash with Posh winger Nathaniel Mendez-Laing.
But Cunningham's injury was even worse after he was the victim of an unpleasant second-half tackle from home striker Tyrone Barnett.
He was left with severe ligament damage but the match official deemed the challenge only to be worthy of a yellow card.
Sarginson had also only booked Mark Little for a two-footed lunge on Liam Fontaine a few minutes earlier and McInnes felt that contributed to the later injury.
The City boss said: "I feel the referee let us down. He abdicated responsibility on a couple of occasions.
"The two-footed lunge should have been dealt with properly. The guy got the ball but the aggression, speed and danger element of the challenge meant it was a red card for me all day long.
"Had he dealt with that one then Greg wouldn't have got the straight leg challenge, which was the worst of the lot.
"For neither of them to merit a red was not only disappointing but baffling.
"I'm just pleased with the result. We produced a really professional performance and saw two clinical finishes from Sam."
Peterborough boss Darren Ferguson felt unable to defend the challenges from Little and Barnett.
Ferguson said: "There were a couple of tackles that I can't condone. I don't tell my players to go out and do things like that."
He added: "There is no getting away from the fact we have suffered a shocking season.
"The commitment is certainly there but I'm not seeing that real conviction to go and win a game.
"One or two players need taking out of the firing line as they look short on confidence.
"I've got a tough job to pick the players up but we will always keep believing in what we are trying to achieve.
"We are only six points from safety and we have 40 games in which to make those up.
"There will be no repeat of what happened last time we were in this situation.
"Myself and the chairman have a great respect for each other. No-one is going anywhere."