While shopping at Walmart on April 13, I found I was short on my total purchases cost.
The cashier kindly said she would set them aside for pick up the next day.
To my utter surprise, a young man (didn't know him - Travis) came up from the middle of the check-out line and said, "I want to pay for this," as he proceeded to pay the cashier. ($78.59)
He did it very quietly and with respect for my feelings.
Travis, if you are reading this, I pray whatever you do in life, may God bless you one hundred fold!