source: Yahoo Shine
Having your credit card declined can be awkward and humiliating. But it's an even worse experience if you're at the airport, rushing to make your flight, and when it comes time to dole out the mandatory fee to check a bag, the airline counter employee lets you know that your card won't go through. Confused, you step out of line to check your balance. You just know your card isn't maxed out and should be able to cover the expense.

Redditor brbmycatexploded recently experienced this exact situation at Tampa International Airport.

"Having my card declined was extremely embarrassing, even though I didn't know a single soul in that airport," the Reddit user, who asked to be identified by just his first name, Andy, told Yahoo! Shine.

His story has a happy ending, though. When he returned to the counter, a Good Samaritan had generously paid his baggage fee and left a note:

"Hey, I heard them say your card was declined. I know how it feels. Your bag fee's on me. Just pay it forward the next time you get a chance. Have a safe flight. "

On Wednesday, Andy posted a photo of the note on Reddit and wrote, "If you're reading this, thanks for making my day."

The kind deed didn't just have a financial impact. "Seriously, reading their note gave me goosebumps and gave me faith that there are still good people out there," Andy shared with Shine.