An instant-read thermometer is your best bet for making sure that meat and fish are cooked to the proper temperature.
I probably use my chef's knives more than any other tool in the kitchen. I'm not married to a particular brand, because they all work, they all have sharp blades.
President Johnson put destroyers in harm's way in the Tonkin Gulf not only once, but several times, with the, with a lot of his people hoping that it would lead to a confrontation and claiming that it had. And could have resulted in the lost of many lives in the course of it.