A group of Slytherin students camping outside the common room because the password is something bigoted and they refuse to say it.
A group of Slytherin students having a sleepover in the Hufflepuff dormitory because the Hufflepuffs found out.
A group of ravenclaw students trying to magically change the doors password when the hufflepuffs tell them.
Gryffindor students making a point to find the head of Slytherin house to tell them that their peers aren't comfortable with the new password and that it has to be changed.