Say, you're a student at a school; you feel the specific school you're enrolled in sucks; and you're talking to another student enrolled in the same school.
Can you simply say (a) 'School sucks' or do you have to say (b) 'Our school sucks' or (c) 'The school sucks'?
Is it ever possible that you can use (a) when referring to the specific school you're enrolled in?