Working for u ...

One day , a very old man was walking in the forest , & he wrongly choosed a wrong hard way to pass ...
When he got the other side , he started to make a bridge to connect the two sides , without passing by this way again !...
A man was looking at what this old man was doing , & he was so curious to know why he is doing this bridge !
So he asked him :
Sir , why you are constructing this bridge , & you r too old to repass it even one time again ...
So the old man said :
I'm making it , just for the others , so they will not use the wrong way again ...