You don't need to worry when you know you have locked your wallet with a safe passphrase...
And even if you didn't bother to do such things, you can have your BTC in a paper wallet, so that you won't have to worry about your coins being hacked as I have never heard any case till now that someone got their coins hacked having them on a paper wallet...
No it's not safe as we all know paper can easily be torn apart, crumpled or burned. Just kidding, a paper wallet makes your coins inaccessible from the anyone on the Internet which eliminates the fear of getting hacked.