Actually, it's even better at my employer. When I feel like a cold is coming on, I just shoot a e-mail to my manager and stay home. I only have to submit a doctor's note at the third day of continuous absence. The manager does not get to argue against your staying home, although I guess that question would be asked if one would abuse this policy. Managers are generally supportive of the policy; they don't want sick people spreading their diseases to their colleagues.