I shoot a lot of military bolt actions, many of which have a safety that's so difficult to use as to be impractical. My idea of safe with a bolt action is bolt open. Period. I just don't mess with the safety on a bolt gun, and prefer to not take any chances. My father's old Model 700 is chambered in 7mm Remington Magnum. We don't shoot it very much. In fact, it's been over a decade since it was last shot. The recoil is just too nasty and ammo too expensive to be a "fun" range gun. I remember shooting 2 rounds through it as a teenager and not wanting to shoot any more.
I don't trust any gun's safety system too far, although the AK-47's safety is, in my opinion, probably the most reliable; it's a big, beefy lever that completely locks up the firing mechanism. There's pretty much no chance of failure once it's engaged. I only trust a safety if I know how it works implicitly. I would be willing to carry my Tokarev in Condition 1, even though it only has a trigger block safety. Why? Because that safety is only one of several things preventing accidental discharge. The trigger block safety on mine works well, and there are multiple other factors that would prevent the gun from going off without the trigger being deliberately pulled. I know my gun, and I know I can trust it.