Why are there 30 bullets in one clip?
Because that's the average classroom size.
Classroom Size
Explanation
Explain Bear
Listen up, buttercup. This "joke" ain't funny, see? It's sayin' there's 30 bullets in a gun clip 'cause classrooms are packin' that many kids, get it? Schools are shootin' ranges now, ya hear? You probably think school is for learning and not dodging bullets, bless your heart.