Gambling old lady

One day an old lady went to the Bank of Canada with a large bag of money. The old lady insisted on speaking to the President of the Bank in order to open a savings account, because she said she had a lot of money.
After many discussions the clerk took her to the office of the President. The President asked her how much she wanted to deposit. She said $165,000, while putting the money onto his desk.
Curious, he asked her how she succeeded in saving so much money. The old lady said she made bets.
“What kind of bets?” asked the surprised President. The old lady answered him,
“For example, I bet you $25,000 that your testicles are square”
The President started to laugh and pointed out that this kind of bet was impossible for her to win.
The old lady replied,
“Would you like to make the bet?”
“Certainly” answered the President, “I guarantee, for $25,000, that my testicles are not square.”
The old lady said, “I accept. But given the importance of the sum wagered I will come back at 10 am tomorrow with my lawyer as a witness”
“No problem” said the President very trustfully.
That evening the President became very nervous about the bet and spent a long time in front of the mirror examining his testicles, turning them in all directions, again and again, to make damn sure they could not be seen as square and to be sure to win the bet.
Next day at 10 am sharp the old lady arrived with her lawyer at the Presidents office to confirm the $25,000 bet for the fact that his testicles were square. The President confirmed the bet was as agreed the previous day. The old lady asked him to drop his trousers and underwear so she and the lawyer could see everything, which the President duly did.
The old lady came closer and asked him whether she could touch them or not.
“Of course, please do,” said the President, “Given the fact there is so much money involved you must be 100% sure”
And the old lady started to do so with a smile.
The President noticed that the lawyer was banging his head against the wall. He asked the old lady why the lawyer was reacting like that.

She answered, “It is probably due to the fact that I bet him $100,000 that around 10 am today I would be holding the testicles of the President of the Bank of Canada in my hands”