A rich Arab student e-mails his dad and says:
Berlin is wonderful, people are nice and I really like it here, but Dad, I am a bit ashamed to arrive at my college with my pure-gold Rolls Royce Phantom when all my teachers and many fellow students travel by train.
Your son, Hassan.
A day later his father replies:
Fifty million euros have been transferred to your account, stop embarrassing your family and buy yourself a train too.
Love you, Dad.