I've just finished getting over a cold this last week. The cold itself wasn't remarkable - it wasn't any more or less bearable than any other cold I've had - but it was noteworthy in that it was the first cold I've had since having a beard.
I can now tell you with utmost certainty that having a cold is the second-worst thing that can happen to a bearded person. Why? Two little words: snot beard. Blowing your nose is virtually impossible without getting some or most of the mucus into your mustache. It's not a good thing.
(The worst thing about having a beard? Why, that would be puke beard. It's only happened to me once, and I had to burn the beard off immediately.)