A teacher at a prestigious private boys’ school in Melbourne, Australia has been seriously injured during senior pranks.

A teacher at Desmond Middle School was shocked when she discovered eight pills in her coffee, and police say a student placed them because he thought it would be funny.

A prank call led to a Code Yellow lockdown on Tuesday afternoon at Atlantic Coast High School, Duval County Public Schools said.

It depends on the prank. Some antics are destructive enough to warrant the consequence, especially since senior pranks occur so late in the day that it’s the only consequence left to give.