Agree with you, always seem to get something when i have a little free or down time. heard a healthcare academic once talkabout it on the radio and he was saying there is a theory that your body knows you are relaxing and some how your immune system just takes a break or your immune system is on high or hyper levels in the busy period, so protects you when you are busy. I think it could be people extend themselves too much in the run up to Chritmas, and when you finally stop your body thinks it is payback time.
Used to have issue with people coming into work in office when they had a cold/flu and they think they were 'soldiering through', when really they were infecting everyone. After a few complaints the company put in a mandate that if you were ill and told to go home then you did or it was a written warning, we did have full pay sick leave for 5 working days and then if you could work from home you still got paid. Office Manager, she was incharge of the rule, took great delight telling senior Directors they had to go home as they was ill.
Good place to work, 25 days a year holiday, not including nat holidays, 3 mandatory training days and minimum annual inflation salary increases, 18% company pension contribution, plus subsidised low rate loans for cars, not affect me, but 12 months maternity leave, with 75% pay. Two years after new company took over, i took voluntary exit, with a payoff [same as redundancy but means they can replace you as the job is still there, they did, with a graduate on £26k, instead of my £85k], they cut everything, including corners, wanting more, previously was very profitable, 6 years after new owners it went under, lost too many contracts, they saw the price/cost of everything and the value of nothing. 6-9 months after i left they would contact me about projects i had worked on, not staff left with the technical and/or experience to complete the final stages or the final reports. Average employee age went down from mid 40s to late 20s, got rid of us and replaced us with cheaper 20somethings and recent graduates. Answered their enquiry via email with a Pdf attachment which in the email i said had all the info they needed, one sentence I DO NOT WORK FOR YOU ANYMORE.
Annoyed me, as i liked working for the old company. Good laugh, hard interesting work and felt useful.