I had a painful out-of-hours support call from a COBOL developer a couple of days ago (I'm a Linux/AIX sys admin, though more Linux than AIX). It went a little like this:
Developer: <initiates converstaion via mobile phone>
Me: <accepts call>Hello.
Developer: problem blah blah whine blah
Me: Have you tried
Developer: <sends SIGINT followed by detail not relating to current conversation>
Me: Have you tried
Developer: <sends SIGINT followed by explaination of what the system did several years ago>
Me: Have you looked at
Developer: <sends SIGINT followed by detail not relating to current conversation>
Me: <sends SIGUSR1 to self causing deep breath and hold temper>Let me log in and
Developer: <sends SIGINT followed by question as to why this occurred>
Me: <wants to send SIGKILL to developer>
...
grrr