Suman was injured while shopping in Ram Pandey Pty Ltd's electronics store. Suman skipped and fell into a hole in the floor after stepping across a barrier that had been erected by builders doing construction work in the store. The barrier comprised a one-metre-high rope and bollard around the hole and a large warning sign - "Danger Do Not Enter". Suman crossed the barrier because he was curious to see what construction work was being done. Applying the principles of the tort of negligence, explain whether Suman can sue the store for his injuries. Discuss whether the store has any defences.