It's something the commissioner has heard before, and it turns his calm, measured voice testy.
"I worked in 54 countries, and we were not aware that there was any particular danger in going to Cuba," Mr Gross says, his voice growing testy.
The hearing also heard some testy exchanges in which voices were occasionally raised by MPs, who appeared frustrated by the bankers' responses.
Among the funniest examples of the way mechanical voices infiltrate our lives today is Jackson's testy relationship with the smooth, commanding voice of the French female GPS unit in his car.
For nearly five hours, the merits of the proposed law were debated before the Youth Services Committee amid raised voices, snide comments, testy comebacks and choked-back tears.
He grew testy in his responses, raising his voice and jabbing his finger in the air.
But he can be testy when annoyed and even raise his voice when he feels dismayed or betrayed, though such instances are rare.
In her newly astute, mature voice Marie engages in some testy discussions with her captors about the promises of democracy and the tendency for power to become concentrated even in the more liberal-minded regimes.
Heffer's voice throughout is that of a testy schoolmaster trying to din facts into a class of urchins who would prefer to be out picking pockets.
A few years ago, Jon Stewart chatted with Bill O'Reilly, with whom he had an intermittently semi-cordial, though testy, relationship, and said, "You've become the voice of sanity" at Fox News.
