rand(）不起作用，给了我一个超出指定的最大值和最小值的数字

所以我正在制作一个游戏，如果你是老板和雇佣员工，我以前使用过rand，但由于某种原因，它现在不起作用：

生成随机数的代码：

class employee
{
public:
int getSkills(int askingPrice)
    {
        srand((unsigned)time(0));
        switch(askingPrice)
        {
        case 1: //point of this is so if askingPrice is from 1 to 5 it will execute the same code
        case 2:
        case 3:
        case 4:
        case 5:
            skills = rand() % 5 + 1;
        }
        return skills;
    }
    int returnSkills()
    {
        return skills;
    }
    int getPaid(int askingPrice)
    {
        srand((unsigned)time(0));
        switch(askingPrice)
        {
        case 1:
        case 2:
        case 3:
        case 4:
        case 5:

            paid = rand() % 5 + 1;
        }
        return paid;
    }
    int returnPaid()
    {
        return paid;
    }
    int getHappy(int askingPrice)
    {
        srand((unsigned)time(0));
        switch(askingPrice)
        {
        case 1:
        case 2:
        case 3:
        case 4:
        case 5:

            happy = rand() % 5 + 1;
        }
        return happy;
    }
    int returnHappy()
    {
        return happy;
    }
private:
    int skills, paid, happy;
};

显示随机数的代码：

std::cout <<"Your first employee is: " << one.returnPaid() << " salary, " <<             one.returnSkills() << " skilled @ his job, " << one.returnHappy() << " happy with his job";

出于某种原因，它显示为：

Your first employee is: -858993460 salary, 3 killed @ his job, 3 happy with his job

为什么我的工资是负数，而其他什么都没有？

我正在使用Visual Studio 2010