Strange things in the night at Changi

This bloke sleeps on the same bench near to the office in T2 in Singapore's Changi airport on at least 2 occasions each week. Who he is, why he sleeps there, how long he sleeps for, what he does when he wakes up; nobody knows. Answers in the comment box please.

Here's another odd thing that apparently goes on in the night at the airport. The luggage trolleys in T3 are grouped into precise formation. Are they Singapore's first line of defense the against the advancement of newly arrived passengers? The military style grouping suggests that the night shift manager is a former Major-General from the Singapore's TA (Trolley Army) and is finding it hard to get rid of old habits.

Or, perhaps, he is one of these people that re-enacts battle scenes from World War 2 and lives out his fantasy within the vast isolation of T3 luggage hall during the night.

Maybe he has an Obsessive Compulsive Disorder that makes him put these trolleys into formation.

Maybe this is the home of Singapore's Synchronised Trolley Dancing team. Who knows?