3 friends lived in the same flat

3 friends lived in the same flat on the 110th floor..

One day the lift wasn't working..

So they had to climb the stairs..

To pass time and not get bored,they said that,

1st person should tell a war story,

2nd a funny story

3rd a sad story..

1st person tells a story and they climb to 50th floor..

2nd tells his funny story and they climb to 109th floor...

Now the 3rd has to say a very sad story..

He says..

"I have kept the door key in car"