Celtic boss Neil Lennon cannot believe Rangers defender Madjid Bougherra escaped a ban for grabbing ref Calum Murray.
Lennon claims the controversial flashpoint is similar to his own clash with whistler Stuart Dougal in 2005 - which saw him hit with a three-game ban.
The Celtic boss rapped: "The furore after mine in 2005 was widespread and quite condemning.
"There's quite a lot of condemnation over this one - but the results are different.
"I find that hard to take. I certainly think it sets a really dangerous precedent."