Personally, at first sight, I might have sided with the ref, given that when you see his view of it, you can understand why he thought it was a penalty (although my opinion is that a penalty award is similar to a criminal conviction - if it isn't beyond reasonable doubt, it shouldn't be given...). Even as a Celtic supporter I felt very uncomfortable after seeing the replay and was hopeful MD would miss... Had a decision like that gone against us I would imagine that some of the more extreme members of our support would have come out with some very unsavoury comments indeed. I'd have been raging for a significant period of time...
The Brown/Swanson thing had it been given, I don't think there would have been too many complaints. I have seen penalties given for far less, with opponents deliberately falling over an outstretched leg or whatever. It didn't look like yer man did that although I am personally an advocate of 'if you can stay on your feet you should' and abhor the current mantra of "he felt contact so he was entitled to go down" - utter baws - and I am honestly not sure how much was due to being unable to stay on his feet and how much was due to looking for the foul - although it did look more like the former. To be honest I could probably go through the game again and see a few decisions that didn't go our way but, as previously mentioned, I understand that an unfair decision given against Celtic is currently unlikely to be as costly as an unfair one given in our favour