Rats!

From the Local (Swedish mouse edition)

Gholam Hafezi was mystified when he didn't get a receipt for his 700 kronor ($104) withdrawal, but noticed instead what looked like a shoe lace hanging out of the machine, the local Västerbotten Folkblad newspaper reported.

Hafezi grabbed hold of it and to his amazement realized it was the tail of a mouse, with the head and the rest of the body stuck inside the machine.

[...]

Hafezi eventually got help from staff who were looking after trolleys, and together they managed to extract the rest of the rodent from the machine

“One of them pulled out the mouse, and its head was left intact, although it was a little bloody. Then I got out my receipt,” Hafezi told the paper.