Unbelievable! I went out with my parents today at 4pm. Reached
home at 8.15pm, then realised we didn't lock the door at all! The
door was closed but not locked, and the keys were just hanging
there on the metal gate.
But luckily, nothing was lost. What a miracle. There were even
flyers at our doorstep, meaning there are people who saw that our
door isn't locked. Kinda amazing nothing's lost. Wow, Sengkang is
quite a safe place. 
you lucky sia, I oso kena left my keys at the door but my gate
was locked..
next time, you must be more extra careful leh..