public static Bonus <float> GetOpinionAboutOffer(HumanFF worker, ExpiringJobOffer newOffer)
        {
            bool willNeedToLeaveCompany = worker.WorkerComponent.companyId != newOffer.CompanyId;

            var bonus = new Bonus <float>("Opinion about offer");

            // scenarios
            // 1 - unemployed
            // 2 - employed, same company
            // 3 - employed, recruiting
            // 4 - !founder

            if (!Humans.IsEmployed(worker))
            {
                return(bonus.Append("Salary", newOffer.JobOffer.Salary > GetSalaryPerRating(worker) ? 1 : -1));
            }

            int loyaltyBonus         = (worker.HumanCompanyRelationshipComponent.Morale - 50) / 10;
            int desireToLeaveCompany = 0;

            if (willNeedToLeaveCompany)
            {
                // it's not easy to recruit worker from other company
                desireToLeaveCompany -= 5;

                // and if your worker loves stability...
                if (Humans.HasTrait(worker, Trait.Loyal))
                {
                    desireToLeaveCompany -= 5;
                }

                // but if your worker loves new challenges...
                if (Humans.HasTrait(worker, Trait.NewChallenges))
                {
                    desireToLeaveCompany += 10;
                }

                if (desireToLeaveCompany > 0)
                {
                    bonus.AppendAndHideIfZero("Wants to leave company", desireToLeaveCompany);
                }
                else
                {
                    bonus.AppendAndHideIfZero("Wants to stay in company", desireToLeaveCompany);
                }

                bonus.Append("Loyalty to company", -loyaltyBonus);
            }
            else
            {
                // prolongation of contract
                bonus.Append("Loyalty to company", loyaltyBonus);
            }

            long newSalary = newOffer.JobOffer.Salary;

            long salary;

            salary = (long)Mathf.Max(Humans.GetCurrentOffer(worker).JobOffer.Salary, 1);

            float salaryRatio;

            salaryRatio = (newSalary - salary) * 1f / salary;
            salaryRatio = Mathf.Clamp(salaryRatio, -5, 5);

            bonus.Append("Salary", salaryRatio);


            return(bonus);
        }