Mike Oxlong
Back in my college days, on one occasion we arrived to find that our tutor had not been supplied with a register.

A piece of paper was sent around the room for everyone to print their name.

After adding my own name to the list, I found a gap higher up and inserted (fnar) the name ‘Mike Oxlong’ (Actually suggested by another B3tan attending the same course)

Being an engineering course, and the tutor being an ex rocket scientist (no seriously), he tallied up the number of names, then the number of pupils and concluded that there was in fact an extra name on the list.

He then began to call out the names on the list, and once he arrived at Mike Oxlong, I gave he game away by erupting into laughter. Unfortunately my tutor had repeated the name several times, allowing everyone else to cotton onto what had happened before the penny finally dropped.

We tried the same trick with another tutor later that day, who simply told us to ‘fuck off’ and ‘bollocks to the register’

Other successful mind games included asking him if he considered ‘morning wood’ as a suitable construction material, and also screwing with computer admin trying to remotely log into a pc by hitting the space button as they were entering their password, thus locking out the administrators.

We also occasionally did some actual learning.
(Frample Tromwibbler climbs an obstacle like old people fuck, Sun 15 Jan 2012, 7:01, 7 replies)

You're a bunch of kids, but I like

(IHateSprouts is baking a huge pie shaped like an enormous pie, Sun 15 Jan 2012, 9:42, closed)

Engineers.

(Misery McUglywife an attention seeking sociopathic fuckstain., Sun 15 Jan 2012, 10:01, closed)

I can imagine it now...
"Anyone know Mike Oxlong? Oh, come on; someone must have seen Mike Oxlong"
(The Incredible Sulk Finally remembered his password on, Sun 15 Jan 2012, 10:35, closed)

Engineers must be the same the world over
I had a similar experience teaching English to engineering students in France. One added the name "Harry Cover" to the class list.
(lolwhites, Sun 15 Jan 2012, 11:34, closed)

that took me a minute, but I approve.

( janet aylia y'all motherfuckers need jesus, Sun 15 Jan 2012, 11:52, closed)

*Drops monocle*
You approve Janet? Are you feeling well?

*Puts monocle back on and lights pipe*
( The Mock Turtle ™ --- Thinks you are a cunt, on, Sun 15 Jan 2012, 13:41, closed)

I did very similar at uni.
I opted for the old classic - Mike Hunt.

Our tutor was a foreign lady and it took her quite a long time to cotton on. Her repeatedly asking "Where is Mike Hunt?", "Who is Mike Hunt", still amuse me to this day.
(badger of doom http://www.trendingtracks.co.uk, Mon 16 Jan 2012, 16:01, closed)