Losing my money, or maybe my marbles.

Unfortunately, this time around, I'm not really sure:

Did I lose $20, or did I get robbed again?

These past few days have been so emotional and hectic, I'm honestly not sure if I spent that $20, or if it should still be in my wallet, or if the cashier forgot to even hand it to me in the first place. Either way, I'm out $20 bucks, which kind of fucks my plans for a leisurely lunch at