At the ATM

I was waiting to use an ATM.

This bloke in front of me was pounding away at the keypad.

Funny thing was, in between pounding the keys he was balancing on one leg. First the left, then the right. Just like a bl**dy flamingo. This went on for some time.

I said, "Mate what are you doing?"

He said, "Sorry mate,

Spoiler:

I'm just checking my balance".