What did you get last for free?

Me? Well i went to my mcdonald's, ready to spend $2 for fries. Thanks to my app, it's like $1.08. I went to the bathroom for a sec, came out to see an empty large cup. I don't skip free stuff so I took it. "Large order fry, mobile order!" I thought it was me but I didn't p-

"I guess it's for you, child. You're dave, right?"
"Wha-no no, no no no, I'm no-"
"Nah, keep it. It's yours."

Sooo... free fries and drink. Woooo

What did you get last for free?
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