[midniteblues]

My wife is a teacher also, she has a brick wall for a immune system as she hardly ever gets a cold.

BUT I do believe she is a carrier as I can get a random cold occasionally without even leaving the house, then a few days to a week later as im suffering from the plague she'll say oh my one student got sent home sick few days ago.

The absolute worst part of getting a cold is usually the timing, it's not like getting a cold is ever in your plans for the week or weekend.
But that big money job you have scheduled to do for the first week of next month, yep thats when you'll feel like the reaper has pulled your life and soul out of you.