To me, give out DM personal phone number is not wrong, you can
say you thought your friend has something really important to
call.
The DM wants to 'scare' everyone, so he/she tries this method so
that students will feel scared.
Must make one thing clear. Your friend give out the DM's number
out of good will. He/she did not organise the prank call. Even if
your friend did, die die dont admit.
DM not giving chance for students to explain is very common. I
believe most DM think that they are 'powerful', and have the
temptation to abuse abit. In my school, i dare to say sometimes
even teachers dont give their students a chance to explain, even if
they do, they don't want to lose face and will insist that they are
correct.
Remember, in a school, other teachers are like collegues to the
DM. You never know if they can work together to kick your friend's
ass just to 'prove themselves right' or to 'show to the whole
school they are tough'. Teachers are older, more experience,
smarter, more power, and they can be corrupted themselves also. I
am not trying to say they are corrupted, bt from your post it seems
like the DM is not a very nice person to play with, and if i put
myself in the DM's shoes and i can think of corruption, i think
they can too.
What i suggest you can do is to write a letter to the school's
principal about the incident
If you are writting a letter(which i tink you should),try to be
a little 'forceful' and serious, using firm language like:
I am not going to let my friend take the punishment because he
is being wrongly accused, thus i wish the school would investigate
the matter deeper, and not make my friend a 'scrapegoat'
instead of writing:
I really hope that the school would try and find out who is at
wrong, and hope appropraite measures can be carried out
Both meant the same thing but the 1st one seems more
impactful
Maybe you can send a copy of this letter to MOE
The above may only work if your friend really have no plans of
prank calling and is only helping out of goodwill
but it is just about the vice president position right?