It's the last day of school for St. Patrick's High School Students in Thunder Bay and a Grade 12 prank left several students outside on the sidewalk.Valedictorian Jacob Luczak says they decided to decorate their St. Pat's t-shirts and have classmates sign them. Meanwhile, Vice Principal Mike Filipetti says students were told to change because the uniforms didn't cover their shoulders, and midriffs. Filipetti feels the incident could have gone differently. The school had also asked for Grade 12 students uniforms to be donated for future students who can't afford the formal attire.