[Bazf]

Japanese man walks into a currency exchange in Trafalgar Square and hands 10,000 yen over the counter.
The woman smiles and hands him back £70.
The following week, he again walks in and puts down 10,000 yen – but this time the teller only gives him £60.
‘Why less this week?’ he asks the teller.
The lady smiles and says, ‘Fluctuations.’
The Japanese man storms out, and just before slamming the door, turns around and says, ‘Well, fluc you Blittish, too