STOMPer Chris's lecture at Ngee Ann Poly was disrupted by a loud noise, caused by the classroom floor tiles that popped up without warning.
Explains the STOMPer:
"I was having a class at Ngee Ann Poly when the tiles started to pop out with a loud noise.
"This happened at around 1pm.
"Perhaps the weather was too hot, causing the tiles to expand?
"Sounds impossible but that seems to be the only reason that we can come up with."