What is the best practice concerning C# short-circuit evaluation?

if (String.IsNullOrEmpty(text1) | String.IsNullOrEmpty(text2) | String.IsNullOrEmpty(text3))
{
    //...
}

if (String.IsNullOrEmpty(text1) || String.IsNullOrEmpty(text2) || String.IsNullOrEmpty(text3))
{
    //...
}

bool nullorempty = str == null || str.Length == 0;

bool hasBuzzed = checkMakeBuzz();
bool isFrobbed = checkMakeFrob();
bool result = hasBuzzed || isFrobbed;

bool isPasswordValid = true;

isPasswordValid &= isEightCharacters(password);
isPasswordValid &= containsNumeric(password);
isPasswordValid &= containsBothUppercaseAndLowercase(password);

return isPasswordValid;

return (isEightCharacters(password) &&
        containsNumberic(password)  &&
        containsBothUppercaseAndLowercase(password));

if (false & somethingThatUpdatesTheDatabase()) { /* ... */ }