Went to Starbucks yesterday. The Barista made an error for my colleague...a warm Latte instead of an ice Latte. She was about to dump it out, when I said..."hang on!"
I looked around...I wanted to find someone who was a coffee drinker, but who wasn't about to buy a coffee (didn't want to punish Starbucks w/lost revenue by taking a customer away).
It took 2 tries, but I managed to convince a total stranger that the coffee was ok (I was standing in front of Starbucks after all).
Felt good to do a random act of kindness.