The ones that make me "smile":
1) They have a crush on a particular instructor and display
overt disappointment when they have to fly with another
instructor.
2) The ones who WILL continue to forget to buy a 50p note pad
and WILL insist on looking at your notes when they read back
ATC info.
3) The ones who "usually" take the key with them when carrying
out the pre-flight EXCEPT when it is freezing and you have
BOTH just shut the doors and strapped in <argghh!>
4) The lovely ones who continually interrupt during the debrief
with pathetic excuses as to why they did NOT listen to you
during the pre-flight briefing <arggh !>
5) Shock horror at the one who announced "that's pretty !" when
shown what an announciator panel test switch did......