What is the most decent thing a complete stranger has ever done for you?

Given me a lift approximately 86 miles to an airport to rent a car after mine broke down by the side of Interstate 81 in rural Pennsylvania.

I was hitch-hiking from North Chicago, IL and someone gave me a ride to Toledo. 288 miles.

     Had just returned from India
and was hitch hiking across the states to San Francisco.
Some where in the middle of the US
the ride we had was turning off of the road 
to a new direction and dropped us off.
... Unfortunately the place was a swamp for mosquitos.
They began attacking us immediately. Must have had a hundred bites
before we realized what was happening. 
     There was a farm house near the road and we ran for shelter,
with the mosquitos chasing after us. We knocked on the door begging for shelter.
A nice lady opened the door and let us in. She explained it was mosquito season 
and we explained we were going to SF.
     Through the graciousness of her heart she gave us a lift to a few miles
down the road where there were no mosquitos. Bless her heart, she literally saved our lives.