For years we've said we should keep a log of these funniest of funny "pilot errors", so here in 2007 we finally are starting. All specific user information is kept anonymous, unless the user specifically wanted to be remembered this way.
my login is stuck and I cannot give shell commands
This occured after a user had setup a new computer, new screen etc. But after the .cshrc was apparently partially processed, it seemed stuck. Looking at the .cshrc and .login file (oh... which one gets executed first again???) and not noticing problems... we saw the problem: that new screen was still not properly centered and the first column was just to the left of the screen so we did not see there was a prompt afterall.