Navigating the wild world of "cos" can be a rollercoaster! This tier list ranks the unforgettable (and often hilariously dreadful) experiences that define the academic journey. From the sheer panic of "เครื่องแก้วแตก" (broken glassware) and the existential dread of "สอบ lab formulation" to the strategic genius of "เอาโพย AI เข้าได้" (bringing AI notes in) and the universal plea of "ขอคนทำงาน" (looking for someone to do the work), these moments shape us. Will you find solace in "ไม่เช็คชื่อเลกเชอร์" (no lecture attendance check) or despair at "สอบตอนพักเที่ยงทุกวัน" (exams during lunch every day)? Rank your struggles and triumphs!