It is said that engaging your back seat belt will help to prevent the things in your boot from flying into the cabin during a crash.
The things that you put in your boots can hit you at the speed of your vehicle and could cause severe injury to the driver and passengers.
Also avoid putting tissue box and other stuff on the back of the rear seat. These too can cause injury.
Can you imagine your tools hitting you at 100km/h?

Well, personally if d things in d boot have enuf force during an impact to break thru our rear seats likely d seat belts won't help much...but it does reduce d force of impact n may give a higher chance for survival n lesser percentage of mortality....

However, how many people u've seen engage d rear seat belts when there's no passengers behind? i havent seen any to be honest....

I saw this on Fifth Gear. They were doing a crash test at 45mph. And they had this instrument to measure the flying objects. The speed of the objects was at 45mph. The expert advice was to remove the stuff at rear seat and to engaged the rear seat belt.
I know no one actually does this. But after watching the show, I made it a point to remove all the unnecessary stuff from my boot and engage my rear seat belt. I even put my tissue box underneath the passenger's seat since.

I didn't know about this fact. I engaged the rear seat belt all the time because i thought it look nicer and neater! :P

Nice ka? i tot it looked kinda funny cutting across d back seats in 45 degrees....
just my 2 cents onli.........
will d rear seat belts get spoilt faster if it's engaged all d time?

http://www.youtube.com/watch?v=YdorzLgiI7k

this is one of the reason...

ahahahahaha.........................d*mn 9 farny..............