The person in front of me at the grocery store used a

to pay for an 8 euro purchase. I was quite shocked that the cashier actually took it without flinching, but she had to give lots of

notes because it was still early in the day.
I have had quite a few of them through my hands- I like to change my smaller bills back to

notes, track them, then change them back to smaller bills. (Good thing that Austrian banks are always well stocked with them)