This is more of a question concerning this episode more than a nit pick. I was watching this episode a few weeks ago, and I noticed at the beginning, that right before Mac walks out of his apartment and collects his mail, he seems to be waving to someone before he comes out. Does anyone know who he may be waving to? I thought that was interesting seeing him do that. I was really curious about that, and thought I would post the question here to see if anyone has any ideas on this.
As for nit pick, I'll have to watch that episode again to see if I see any "mistakes". I do remember one thing...there was a scene where Mac was putting this bar across the stairs to trip these men right when they were coming downstairs. In one scene Mac has his watch on, but when he is putting that bar across the stairs to trip those guys, he isn't wearing his watch. You can see the "tan line" where his watch was. I thought that was interesting. So far that is the only thing I noticed in this episode. I'll watch it again and look for a few other things. Once in awhile you see a few things that catch your eye but you don't think they are that important to mention. I just like watching the episodes! They are all really good!
Take Care,
Nancy
I wasn' sure if he was waving to someone he knew personally or just waving to those people in the store. I was just curious. You're probably right about Mac doing the repairs for them. He told someone that he did repairs for those people who owned that hardware store he lived over in the next season episodes. He said he kept them in business. lol So he may have helped those people out from time to time. 
And then when he rigged up that cable and pulley to get them out of the attic. That was cool too! 
