I had two recent situations where other pilots thought they'd be cool
by being condescending jackasses over the radio, which effected my
ability to teach my student.

The first time was when I was at a local uncontrolled field with one
of my students to introduce solf-field takeoffs and landings. When we
were turning downwind, I heard a Cirrus call "On the ILS at the outer
marker". I haven't flown any approaches for months, so I had no idea
how exactly far out he was. There were at least two other people in
the pattern, so instead of asking him to give a more accurate position
report, I just went on. Just before I got abeam the numbers on
downwind, the Cirrus guy called 3 miles out, so I told my student to
just do a short approach instead of extending which would have screwed
everyone else up.

I'm looking out the window like crazy to find this Cirrus guy but I
don't see him anywhere. Then suddenly I hear him say in a snappy voice
"Cessna on base at *** do you plan on cutting me off?" Startled, I
looked around but couldn't for the life of me see him. I responded
"uuhh, Cirrus on ILS I don't see you", then he snaps back
sarcastically, "oh 45 seconds before impact..."

I look right in front of me and there he is zooming by. I didn't
realize Cirrus's were so fast. He had to have been going more than 150
knots. I've turned short approaches in front of Seminoles when they
were on 3 mile ILS finals and it has never been a problem...

Anyways, the guy didn't have to be such a huge asshole. A busy pattern
is stressful enough, the ones coming in straight in can at least be a
little helpful, or at the VERY LEAST not act like a little baby when
things don't go their way.

Lemme get this straight! You are in instructor, which means you are
instrument rated, which means that you should know that outer markers are
typically at least five miles from the landing zone--so, if you can not
recall for a specific airport, you can still guess five miles. In addition,
you did not bother to maintain familiarity with the procedures at an airport
where you typically instruct, you failed to understant that the Cirrus had
travelled a substantial (probably between a third and a half) of the
distance to the runway, and then you turned in front of known traffic which
you did not see.

IMHO, your usenet handle is well chosen. If you were my instructor; the
landing would be a full stop, followed by a very firm "You're fired!" (That
is, of course, presuming that I was stricken speechless back when I refused
to turn base.)

Peter