How far do you go to help a stranger?

This is a point of contention between my husband and me.

This morning for instance.

I took my 5 year old to Target to buy a birthday gift for a friend.  On our way, I saw a man in his late 50's walking along side the busy road (no sidewalk),  using a cane and carrying a package.

It's not unusual to see people walking and riding their bikes more these days.  I attribute it to the price of gas.  I see several bikes on th...