Say What?

The bank manager noticed the new teller was terrible when it came to counting money and adding up figures.
“Where did you get your financial education?” he asks.
“Yale,” replies the lad. The manager is sure he’s misheard the man, so he asks his question again and the man again responds “Yale.”
That can’t be right, thinks the manager. He decides he’s going to check it out online.
“And what’s your full name again?” asks the manager.
“Yim Yohnson.”