These are things that, as a Mac User you know are there, and dread them coming back to haunt you. You have seen the light and have carried much water for Jobs & Co. convincing the great unwashed that the thing they need to do, the ONE thing that will make their computing life more complete, is to switch to a Macintosh.
Having done so, said unwashed person comes to you a couple of weeks after getting their Mac Pro/iMac and says agitatedly....
Where is the right click? Well you say, if you just hold down the Control button when you click that will bring up the same menu functionality... WHAT. ADD A RIGHT CLICK the single mouse click thing was tired in 1994, now it's just stupid.
There is no Print Screen button on the keyboard. How do I Make a screen print? Your friend asks. Well, you can give them this list, but be careful, because Macs support many different image types that are often not supported on the PC. Nothing worse than Opening up a presentation on a PC and having none of the images you worked so hard to steal/find be there. Damn you Tiff.
Why can't I play video? Oh you can just not WMV video. without downloading. Flip 4 Mac ignore ALL the adds and get the FREE one. This functionality should exist out of the box, really.
Why cant I Control-C/V/B/X/Z? Oh you can you just have to scrunch up your pinky and use the command button instead. WHAT? The Mac is not Windows and this little penance will remind you how lucky you are to have such a wonderful machine.
Here's an Idea, how about a Switchers panel on the Systems Preferences panel that will let you customize some of these "features" so that people can work in an environment that is comfortable for them. That way the people that we convince that the Mac really is a better computing environment won't want to beat us unmercifully (as often, I really am a slacker) .